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W-Series Merino Baselayer
A first layer with very high thermal protection that combines the best of two fabrics: the thermoregulation and natural antibacterial properties of merino wool with the adaptability and ventilation of Polar Stretch Grid® fabric. Positioned in strategic areas, they create a warm, comfortable, and highly versatile garment. The feature you'll appreciate the most is its built-in neck gaiter, which prevents cold from entering through the neck and, thanks to its length, can also be worn as a hat, keeping you warm and protected at all times. Ideal for FAST&LIGHT activities in severe cold conditions.
FAST&LIGHT - 286 g. (S)
"This garment stands out in the W-Series for its functionality and lightweight design. It is a fitted base layer that provides comfort, regulates body temperature, and features an innovative high-neck protector that can also cover the head. Ideal for year-round use, it adapts to various activities thanks to its versatile design and thermal protection in key areas."
Jonatan Garcia
Equipment
Flatlock Seams: Prevent chafing and ensure comfort during long activities.
Thumbholes: Improve fit and add warmth to the hands.
Smart Thermal Mapping: Extra protection in key areas with additional weight for targeted warmth.
Extra-long Multi-function Collar: Blocks cold air and offers enhanced thermal protection, while also doubling as a hat.
Base Layer Fit: Ergonomic fit, perfect as a comfortable and thermal inner layer.
Weight
Size S: 286 grams
Size M: 304 grams
Size L: 326 grams
Size XL: 338 grams
Fabric
100% Merino Wool, 180 g/m² 18.5 mic super fine. A high-performance natural yarn offering excellent thermal retention (heat retention), high breathability (moisture wicking), odor reduction (antibacterial), and UV protection. It feels exceptionally soft against the skin.
Polar Stretch Grid®, Polyester (94%) and Elastane (6%) Anti-pilling 4 (ISO 12945-2:2000). The grid structure retains body heat while creating microchannels that circulate warm air, providing excellent ventilation. Its smooth exterior aesthetic and great elasticity make it ideal for high-performance thermal mid-layers.
Sizes
cm / kg | 165 | 170 | 175 | 180 | 185 | 190 |
55 | S | |||||
60 | S | S | M | |||
65 | S | S | M | M | ||
70 | S | S | M | L | L | |
75 | M | M | L | L | XL | |
80 | M | L | XL | XL | ||
85 | L | XL | XL | |||
90 | XL | XL |
Maintenance
Information about care and maintenance
Specific References
- ean13
- 8435422232531
Shopping Cart
Back to shopCart is empty.
Account
- MenuBack
- GIFT GUIDE CHRISTMAS
- W-SERIES *
- MEN
- PRODUCTSPRODUCTS
- Base Layer
- Pants
- Jackets
- Packs
- ACTIVITIESACTIVITIES
- ALPINISM
- SKIMO
- TRAIL RUNNING
- CATEGORIESCATEGORIES
- FAST&LIGHT
- WATERPROOF
- INSULATION
- WOMEN
- PRODUCTSPRODUCTS
- BASE LAYER
- Pants
- Jackets
- Packs
- ACTIVITIESACTIVITIES
- ALPINISM
- SKIMO
- TRAIL RUNNING
- CATEGORIESCATEGORIES
- FAST&LIGHT
- INSULATION
- WATERPROOF
- ACCESORIES
- Socks
- Headwear
- Care and maintenance
- Gloves
- Running vests and belts
- Softflask
- Underwear
- PACKS
- ABOUT OS2O
- Work with us
- CUSTOMER SERVICESCUSTOMER SERVICES
- From Monday to FridayFrom Monday to Friday
- 11:00-14:00 & 17:00-20:0011:00-14:00 & 17:00-20:00
- +34 974 258 592
- ventas@os2o.com
- OS2O JACA
- STORIES
- PROFILE