Pack O2 Trail

The O2 Waterproof Trail 30K PRO Jacket is the ultimate jacket for those seeking to combine lightness, breathability, and protection in trail running. Weighing just 148 grams, this waterproof jacket is 100% windproof and designed to perform at its best in adverse conditions.

Made with the innovative O2 30K 2.5-layer membrane, it guarantees 20,000 mm waterproofing and exceptional breathability of MVTR: 30,000 g/(m²·24h), ensuring comfort even during high-intensity activities (see test). Fully taped seams, waterproof YKK™ Coil AquaGuard® zippers, and the ability to pack into its own pocket make it an easy and practical choice.

The hood features a 3-point adjustment system and a flexible visor for additional protection, while its ultralight and technical design is tailored to optimize performance for mountain runners.

Perfect for rainy or windy days, this jacket combines advanced technology with functional details to ensure an unbeatable trail running experience.

FAST&LIGHT - 148g (S)

Activity

Trail running, Skimo

Equipment

Ergonomic hood with front mesh, lateral elastic, and quick rear adjustmentt

Flexible visor offering extra protection against rain and wind, adaptable to conditionst

Compact and packable, easily storable in its own pockett

Fitted cuffs that prevent moisture accumulation, enhancing comfort and functionalityt

Soft chin-guard that avoids chafing and increases comfort during extended uset

Lightweight, flexible, fully sealed YKK™ AquaGuard® zippers for maximum water protectiont

Chest pocket with secure space and zipper for essential small itemst

One-hand stopper system for quick and precise waist adjustmentt

DWR coating effectively repels water, enhancing protection against rain or moisturet

Outdoor Fit with a technical cut for total freedom of movement, compatible with layeringt

Weight

Size S - 148 grams

Size M - 159 grams

Size L - 167 grams

Size XL - 175 grams

Size XXL - 191 grams

Fabric

O2 2.5-layer fabric designed for maximum lightness and technical performance

100% Nylon Ripstop, 60 g/m²

Hydrophilic polyurethane membrane with an excellent balance between waterproofing and breathability

Guaranteed 20,000 mm waterproofing (TEST JIS L1092:2009 - 7.1.2), ideal for heavy rain conditions (see test)

High breathability of 30,000 g/(m²·24h) (TEST JIS L1099:2006 METHOD B1), ensuring comfort during high-intensity activities

DWR C6 treatment (Durable Water Repellency) 80/20 for durable water repellency and protection against surface moisture

Note: To ensure the durability of this garment, check that items used inside the jacket (zipper pulls, poles, stoppers, etc.) do not have abrasive or sharp elements that could damage the membrane

Technology

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 in an ultra light fabric (60g/m²).

Size

Maintenance

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.

Recommended products for washing, maintenance, and reapplying waterproofing

More Information

Breathable Jackets and Pants at OS2O

Waterproof / Breathable Membranes: The Importance of DWR Treatment