Base Layer

Women base layer for outdoor sports.

There are 23 products.

Showing 1-20 of 23 item(s)
Warmfit Merino 100 Shirt Woman - Ocean Warmfit Merino 100 Shirt Woman - Ocean

Warmfit Merino 100 Shirt Woman - Ocean

The Warmfit 100 Merino T-shirt Women is a high-performance thermal garment for mountaineering and alpinism. Made entirely of merino wool, without blends, it offers a high thermal capacity even when wet, combining natural calorific properties with good breathability. Thanks to its soft touch and women-specific ergonomic cut, the Warmfit 100 is a versatile shirt, ideal as a base layer in winter and as an outer shirt on cool days.

FAST&LIGHT - 137g (XS)

merino wool

Price €79.90
    Warmfit Merino 100 Shirt Woman - Grey Warmfit Merino 100 Shirt Woman - Grey

    Warmfit Merino 100 Shirt Woman - Grey

    The Warmfit 100 Merino T-shirt Women is a high-performance thermal garment for mountaineering and alpinism. Made entirely of merino wool, without blends, it offers a high thermal capacity even when wet, combining natural calorific properties with good breathability. Thanks to its soft touch and women-specific ergonomic cut, the Warmfit 100 is a versatile shirt, ideal as a base layer in winter and as an outer shirt on cool days.

    FAST&LIGHT - 137g (XS)

    merino wool

    Price €79.90
      Warmfit Merino 100 Shirt Woman - Seaport Warmfit Merino 100 Shirt Woman - Seaport

      Warmfit Merino 100 Shirt Woman - Seaport

      The Warmfit 100 Merino T-shirt Women is a high-performance thermal garment for mountaineering and alpinism. Made entirely of merino wool, without blends, it offers a high thermal capacity even when wet, combining natural calorific properties with good breathability. Thanks to its soft touch and women-specific ergonomic cut, the Warmfit 100 is a versatile shirt, ideal as a base layer in winter and as an outer shirt on cool days.

      FAST&LIGHT - 137g (XS)

      merino wool

      Price €79.90
        Thermal Seamless Shirt Woman - Black Thermal Seamless Shirt Woman - Black

        Thermal Seamless Shirt Woman - Black

        T-shirt first layer high performance, provides a perfect regulation of body temperature. Made from a mixture of polypropylene and elastane in a seamless construction with thermo-active panels that offer an ideal balance between heat capacity and perspiration. Elastic, soft and adaptable to the body, with unrestricted action adjustment in movements, a garment ideal for indoor use in intense activities at low temperatures.

        FAST&LIGHT - one hundred and thirty-six grams . (XS)

        Price €49.90
          Thermal Seamless Shirt Woman - Imperial Purple Thermal Seamless Shirt Woman - Imperial Purple

          Thermal Seamless Shirt Woman - Imperial Purple

          T-shirt first layer high performance, provides a perfect regulation of body temperature. Made from a mixture of polypropylene and elastane in a seamless construction with thermo-active panels that offer an ideal balance between heat capacity and perspiration. Elastic, soft and adaptable to the body, with unrestricted action adjustment in movements, a garment ideal for indoor use in intense activities at low temperatures.

          FAST&LIGHT - one hundred and thirty-six grams . (XS)

          Price €49.90
            Thermal Seamless Shirt Woman - Black/Grey Thermal Seamless Shirt Woman - Black/Grey

            Thermal Seamless Shirt Woman - Black/Grey

            T-shirt first layer high performance, provides a perfect regulation of body temperature. Made from a mixture of polypropylene and elastane in a seamless construction with thermo-active panels that offer an ideal balance between heat capacity and perspiration. Elastic, soft and adaptable to the body, with unrestricted action adjustment in movements, a garment ideal for indoor use in intense activities at low temperatures.

            FAST&LIGHT - one hundred and thirty-six grams . (XS)

            Price €49.90
              Thermal Seamless Shirt Woman - Blue Thermal Seamless Shirt Woman - Blue

              Thermal Seamless Shirt Woman - Blue

              T-shirt first layer high performance, provides a perfect regulation of body temperature. Made from a mixture of polypropylene and elastane in a seamless construction with thermo-active panels that offer an ideal balance between heat capacity and perspiration. Elastic, soft and adaptable to the body, with unrestricted action adjustment in movements, a garment ideal for indoor use in intense activities at low temperatures.

              FAST&LIGHT - one hundred and thirty-six grams . (XS)

              Price €49.90
                Skin Feel Sun Hoodie Woman - Paradise Green Skin Feel Sun Hoodie Woman - Paradise Green

                Skin Feel Sun Hoodie Woman - Paradise Green

                The Skin Feel® Sun Hoodie Women is a lightweight and breathable layer specifically designed for the female body, ideal for summer mountain activities. Made from Skin Feel® fabric, it delivers a soft touch, excellent lightness, and integrated UPF 50+ sun protection.

                Suitable for a wide range of outdoor use—mountain hikes, trail running sessions, or climbing on sun-exposed walls—as well as moments of rest or post-activity recovery. Its technical design offers comfort, ventilation, and functionality in warm conditions.

                A laser-cut perforated back panel enhances breathability during intense efforts or hot days, helping maintain a consistent cooling sensation.

                A versatile, functional, and ultra-comfortable garment, ideal for women seeking prot

                FAST&LIGHT – 95g (XS)

                skinfeel.webpUV%20Protected%20WEB.jpg

                Price €49.90
                  Peak Motion Long Shirt Woman - Blue Mirage Peak Motion Long Shirt Woman - Blue Mirage

                  Peak Motion Long Shirt Woman - Blue Mirage

                  The new OS2O Women's Long-Sleeve Trail Running Shirt redefines lightweight protection and technical comfort with a design specifically tailored to the female anatomy. Designed for high-intensity mountain training and racing, especially during transitional seasons (spring and autumn), it offers an ergonomic fit, strategic breathability, and full freedom of movement for peak performance on the trail.

                  It is primarily made with Cool2Dry®, a stretchy technical fabric that delivers an ultra-soft feel against the skin, excellent elasticity, and quick-drying properties—ideal for variable or mild climates. The side panels, underarms, and inner sleeves feature ultra-light technical mesh, strategically placed to enhance ventilation in key sweat zones and maintain freshness even during extended efforts.

                  The long sleeves provide an extra layer of protection against brush, cool wind, or sun exposure—without compromising lightness or comfort.

                  A versatile, technical garment for mountain runners who demand uncompromising performance, effective thermoregulation, and added protection during mid-season conditions.


                  FAST&LIGHT 
                  - 92 gramos (XS)

                   

                  cool2dry.jpg Made%20in%20Spain%20140.jpg 

                  Price €44.90
                    Peak Motion Long Shirt Woman - Prune Peak Motion Long Shirt Woman - Prune

                    Peak Motion Long Shirt Woman - Prune

                    The new OS2O Women's Long-Sleeve Trail Running Shirt redefines lightweight protection and technical comfort with a design specifically tailored to the female anatomy. Designed for high-intensity mountain training and racing, especially during transitional seasons (spring and autumn), it offers an ergonomic fit, strategic breathability, and full freedom of movement for peak performance on the trail.

                    It is primarily made with Cool2Dry®, a stretchy technical fabric that delivers an ultra-soft feel against the skin, excellent elasticity, and quick-drying properties—ideal for variable or mild climates. The side panels, underarms, and inner sleeves feature ultra-light technical mesh, strategically placed to enhance ventilation in key sweat zones and maintain freshness even during extended efforts.

                    The long sleeves provide an extra layer of protection against brush, cool wind, or sun exposure—without compromising lightness or comfort.

                    A versatile, technical garment for mountain runners who demand uncompromising performance, effective thermoregulation, and added protection during mid-season conditions.


                    FAST&LIGHT 
                    - 92 gramos (XS)

                     

                    cool2dry.jpg Made%20in%20Spain%20140.jpg 

                    Price €44.90
                      Gradient Long Shirt Woman - Mint Gradient Long Shirt Woman - Mint

                      Gradient Long Shirt Woman - Mint

                      The new OS2O Women's Long-Sleeve Trail Running Shirt redefines lightweight protection and technical comfort with a design specifically tailored to the female anatomy. Designed for high-intensity mountain training and racing, especially during transitional seasons (spring and autumn), it offers an ergonomic fit, strategic breathability, and full freedom of movement for peak performance on the trail.

                      It is primarily made with Cool2Dry®, a stretchy technical fabric that delivers an ultra-soft feel against the skin, excellent elasticity, and quick-drying properties—ideal for variable or mild climates. The side panels, underarms, and inner sleeves feature ultra-light technical mesh, strategically placed to enhance ventilation in key sweat zones and maintain freshness even during extended efforts.

                      The long sleeves provide an extra layer of protection against brush, cool wind, or sun exposure—without compromising lightness or comfort.

                      A versatile, technical garment for mountain runners who demand uncompromising performance, effective thermoregulation, and added protection during mid-season conditions.


                      FAST&LIGHT 
                      - 92 gramos (XS)

                       

                      cool2dry.jpg Made%20in%20Spain%20140.jpg 

                      Price €44.90
                        Gradient Long Shirt Woman - Coral Gradient Long Shirt Woman - Coral

                        Gradient Long Shirt Woman - Coral

                        The new OS2O Women's Long-Sleeve Trail Running Shirt redefines lightweight protection and technical comfort with a design specifically tailored to the female anatomy. Designed for high-intensity mountain training and racing, especially during transitional seasons (spring and autumn), it offers an ergonomic fit, strategic breathability, and full freedom of movement for peak performance on the trail.

                        It is primarily made with Cool2Dry®, a stretchy technical fabric that delivers an ultra-soft feel against the skin, excellent elasticity, and quick-drying properties—ideal for variable or mild climates. The side panels, underarms, and inner sleeves feature ultra-light technical mesh, strategically placed to enhance ventilation in key sweat zones and maintain freshness even during extended efforts.

                        The long sleeves provide an extra layer of protection against brush, cool wind, or sun exposure—without compromising lightness or comfort.

                        A versatile, technical garment for mountain runners who demand uncompromising performance, effective thermoregulation, and added protection during mid-season conditions.


                        FAST&LIGHT 
                        - 92 gramos (XS)

                         

                        cool2dry.jpg Made%20in%20Spain%20140.jpg 

                        Price €44.90
                          Gradient Trail T-Shirt Woman - Coral Gradient Trail T-Shirt Woman - Coral

                          Gradient Trail T-Shirt Woman - Coral

                          The new OS2O Trail Running T-shirt for women redefines lightweight performance and technical comfort with a design specifically tailored to the female anatomy. Designed for high-intensity training and racing, it combines an ergonomic fit, strategic breathability, and an ultra-soft feel to elevate mountain performance.

                          It is primarily made from Cool2Dry®, a stretchy technical fabric that provides excellent freedom of movement, quick drying, and exceptional softness against the skin. The side panels and inner sleeves feature ultra-light mesh fabric, strategically placed to enhance ventilation in high-sweat areas.

                          With a slim fit and high-stretch materials, it fits like a second skin without restricting movement. A lightweight, breathable technical garment for mountain runners who demand uncompromising performance, even on the most demanding trails.


                          FAST&LIGHT 
                          - 67 grams (XS)

                           

                          cool2dry.jpg Made%20in%20Spain%20140.jpg 

                          Price €39.90
                            Peak Motion Trail T-Shirt Woman - Blue Mirage Peak Motion Trail T-Shirt Woman - Blue Mirage

                            Peak Motion Trail T-Shirt Woman - Blue Mirage

                            The new OS2O Trail Running T-shirt for women redefines lightweight performance and technical comfort with a design specifically tailored to the female anatomy. Designed for high-intensity training and racing, it combines an ergonomic fit, strategic breathability, and an ultra-soft feel to elevate mountain performance.

                            It is primarily made from Cool2Dry®, a stretchy technical fabric that provides excellent freedom of movement, quick drying, and exceptional softness against the skin. The side panels and inner sleeves feature ultra-light mesh fabric, strategically placed to enhance ventilation in high-sweat areas.

                            With a slim fit and high-stretch materials, it fits like a second skin without restricting movement. A lightweight, breathable technical garment for mountain runners who demand uncompromising performance, even on the most demanding trails.


                            FAST&LIGHT 
                            - 67 grams (XS)

                             

                            cool2dry.jpg Made%20in%20Spain%20140.jpg 

                            Price €39.90
                              Peak Motion Trail T-Shirt Woman - Prune Peak Motion Trail T-Shirt Woman - Prune

                              Peak Motion Trail T-Shirt Woman - Prune

                              The new OS2O Trail Running T-shirt for women redefines lightweight performance and technical comfort with a design specifically tailored to the female anatomy. Designed for high-intensity training and racing, it combines an ergonomic fit, strategic breathability, and an ultra-soft feel to elevate mountain performance.

                              It is primarily made from Cool2Dry®, a stretchy technical fabric that provides excellent freedom of movement, quick drying, and exceptional softness against the skin. The side panels and inner sleeves feature ultra-light mesh fabric, strategically placed to enhance ventilation in high-sweat areas.

                              With a slim fit and high-stretch materials, it fits like a second skin without restricting movement. A lightweight, breathable technical garment for mountain runners who demand uncompromising performance, even on the most demanding trails.


                              FAST&LIGHT 
                              - 67 grams (XS)

                               

                              cool2dry.jpg Made%20in%20Spain%20140.jpg 

                              Price €39.90
                                Seamless Pro Top - Blue - Green Seamless Pro Top - Blue - Green

                                Seamless Pro Top - Blue - Green

                                Seamless top without rigid elements designed for high-intensity mountain activities. Thanks to its butterfly back design and removal of all lateral seams, the PRO Top eliminates friction with the skin even in long-distance ultra trail competitions. It provides a medium compression that together with its quick-dry fabric guarantees comfort during the whole activity. Ideal as underwear in alpine or skimo outings or as exterior layer for trail running adventures under high temperatures.

                                FAST&LIGHT - 111g (S)

                                Price €34.90
                                  Seamless Pro Top - Gris oscuro Seamless Pro Top - Gris oscuro

                                  Seamless Pro Top - Gris oscuro

                                  Seamless top without rigid elements designed for high-intensity mountain activities. Thanks to its butterfly back design and removal of all lateral seams, the PRO Top eliminates friction with the skin even in long-distance ultra trail competitions. It provides a medium compression that together with its quick-dry fabric guarantees comfort during the whole activity. Ideal as underwear in alpine or skimo outings or as exterior layer for trail running adventures under high temperatures.

                                  FAST&LIGHT - 111g (S)

                                  Price €34.90
                                    Seamless Pro Top - Ocean Seamless Pro Top - Ocean

                                    Seamless Pro Top - Ocean

                                    Seamless top without rigid elements designed for high-intensity mountain activities. Thanks to its butterfly back design and removal of all lateral seams, the PRO Top eliminates friction with the skin even in long-distance ultra trail competitions. It provides a medium compression that together with its quick-dry fabric guarantees comfort during the whole activity. Ideal as underwear in alpine or skimo outings or as exterior layer for trail running adventures under high temperatures.

                                    FAST&LIGHT - 111g (S)

                                    Price €34.90
                                      Skin Feel T-Shirt Woman - Paradise Green Skin Feel T-Shirt Woman - Paradise Green

                                      Skin Feel T-Shirt Woman - Paradise Green

                                      The Skin Feel® T-Shirt Women is a short-sleeve shirt specifically designed for the female body, offering the perfect balance of comfort, performance, and style. Ideal for all kinds of outdoor activities—from mountain routes and trail training to recovery and post-activity moments.

                                      Made from Skin Feel® fabric, it stands out for its lightness, softness, and cool feel against the skin. The micro-perforated back panel enhances breathability in hot or high-exertion conditions, while integrated UPF sun protection keeps you covered even during the most exposed outings.

                                      A versatile, minimalist, and ultra-comfortable garment, made for women who seek performance and comfort across a wide range of activities.

                                      FAST&LIGHT - 58g (XS) 

                                      skinfeel.webpUV%20Protected%20WEB.jpg

                                      Price €34.90
                                        Skin Feel T-Shirt Woman - Paisley Skin Feel T-Shirt Woman - Paisley

                                        Skin Feel T-Shirt Woman - Paisley

                                        The Skin Feel® T-Shirt Women is a short-sleeve shirt specifically designed for the female body, offering the perfect balance of comfort, performance, and style. Ideal for all kinds of outdoor activities—from mountain routes and trail training to recovery and post-activity moments.

                                        Made from Skin Feel® fabric, it stands out for its lightness, softness, and cool feel against the skin. The micro-perforated back panel enhances breathability in hot or high-exertion conditions, while integrated UPF sun protection keeps you covered even during the most exposed outings.

                                        A versatile, minimalist, and ultra-comfortable garment, made for women who seek performance and comfort across a wide range of activities.

                                        FAST&LIGHT - 58g (XS) 

                                        skinfeel.webpUV%20Protected%20WEB.jpg

                                        Price €34.90