O2 Waterproof Trail Jacket 30k

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    (4,9/5) out of 22 total ratings
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    The O2 Waterproof Trail jacket 30k is a waterproof jacket, extremely breathable, ultra lightweight and 100% windproof. It is a garment designed for trail running and fast activties with a weight of only 173 grams. Manufactured with the new O2 30K membrane of 2.5 layers which offers a guaranteed (test) waterproof protection of 20,000 mm and a transpiration capacity of MVTR: 30,000 g/ ((m2·24h). 100% heat sealed seams, waterproof zippers from YKKTM AquaGuard®. Foldable in its own pocket.

    A carefully crafted garment designed to protect trail runners under the most adverse conditions without affecting their performance.

    FAST&LIGHT - 173g (S)



    Trail running, Skimo, FAST&LIGHT Alpinism


    Mixed cuff, prevents from water saturation

    Chin-Guard, zipper protected to prevent friction with the chin

    Automatic waterproof Cental YKK® Zipper®AquaGuard®. It locks at the desired height

    Button (hidden) on the zipper to be able to wear the garment open and ventilated

    Waist adjustment by system One hand stopper

    Water repellent external treatment DWR

    Foldable in its own chest pocket

    Outdoor Fit: Comfortable pattern offering complete freedom of movement


    Cutting S -173 grams

    Cutting M -184 grams

    Cutting L -192 grams

    Cutting XL -200 grams


    O2 - 2.5 layers

    100% Nylon 60 g/m2. Ripstop. Hydrophilic membrane of polyurethane.

     Waterproof: 20,000mm of water pressure (TEST JIS L1092: 2009 - 7.1.2) 

    Breathability: 30,000g/(m²·24h) (TEST JIS L1099: 2006 METHOD B1)

    DWR C6 (Durable Water Repellency) 80/20

    Note: both the fabric they are the thinnest and lightest available for a jacket of this characteristic. Use with some backpacks may cause friction on the fabric, depending also on factors such as distribution of weight or the force with which the backpack fits.

    Laboratory report


    The O2 WP Trail jackets have been designed to be used in aerobic activities and be subjected to intense use.  Together with one of Japan's leading textile manufacturers, we have developed a fabric tailored to the garment, following our FAST&LIGHT design philosophy. We combine high waterproof/breathable capacity and durability in an ultra light fabric (60g/).



    Aup to 169up to 174up to 183up to 189up to 195


    Measures of the product

    medidas OS2O



    For proper maintenance of O2 - 2.5 layer membranes follow these recommendations:

     It is important to wash the garment regularly, especially after wearing it in a sweaty, intense aerobic situation or after being exposed to a chemical that may affect its properties.

    Wash the garment alone or with other breathable waterproof garments. Do not bring inside out.

    Machine wash (never hand wash) in cold water at 30 oC.

    Do not use softeners.

    5. Use liquid detergent, not to use bleach, avoid powdered detergents.

    To increase the duration of the garment and its properties, we recommend the use of nikwax® specific products.

    7. Rinse several times (at least two rinse cycles) if necessary, until it doesn´t have any soap smell.


    Presentation in action of the O2 Waterproof 30k Trail Jacket by the OS2O Trail team.

    Specific References


     Reviews (22) - Review moderation  

    No hace milagros
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    Buen producto. Es repelente tal y como indican, se ve muy buena calidad, la cremallera personalmente no me gusta, cuesta mucho. Echo en falta algun bolsillo, pero es cierto que si quieres algo que no cale cuanto menos opciones des al agua mejor. Usado en trailrunning en condiciones adversas. Por dentro acabas mojado por el sudor, es buen producto pero no hace milagros.

    By Iñaki M. the 2024-03-05
    Excelente chaqueta
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    Ayer la probé con -5*c y viento de 30/40 km hora y debajo de la chaqueta manga corta y en todo momento me sentí seguro y caliente . Un 10 para la chaqueta

    By Antonio Jesús G. the 2024-02-25
    Chaqueta ligera y de calidad
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    Súper ligero pero sin sacrificar calidad y prestaciones de impermeabilidad, no he probado producto mejor que este.

    By Daniel B. the 2024-02-15
    Buenas sensaciones
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    Después de dos horas de intenso ejercicio en día frío y con bastante humedad (más niebla que lluvia) la prenda ha cumplido con mis expectativas, me he sentido agusto y protegido en la práctica del trail running por pista forestal. Funciona como cortavientos estupendamente, pero para días muy frios es recomendable llevar una buena capa debajo para ir más abrigados. Simplemente que me ha sorprendido la falta de uno de los tiradores laterales de la capucha en algún momento la use como protección para los oidos. De los roces con ramas decir que estos si bien han sido leves no han dañado la prenda, ningún enganchón, aunque conviene tener cuidado. Creo que es una buena compra, necesario y valioso ejemplo de material de última tecnología al servicio del corredor.

    By Luis Ángel H. the 2024-02-01
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    No defrauda en absoluto , cumple sobradamente con todas las expectativas , solo un consejo a título personal si llevas chaleco mejor cojed una talla mas , ya que creo que es mejor en caso de lluvia persistente llevarlo dentro que no fuera ,pero ya digo que es una apreciación a titulo personal. Sin duda volvería a comprarla.

    By FERRAN P. the 2024-01-07

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