Dark skies looming over the trail? No problem. The Thunderstorm Waterproof 25/75 Jacket is the perfect shield against the elements. Ultra lightweight, fully waterproof and highly breathable, this seriously advanced running jacket means there’s no such thing as bad weather.

Made of a unique Japanese three-layer fabric, the jacket is water-resistant to 25,000 Schmerbers, with a breathability rating of 75,000g/m2, all the while weighing in at just 125g.

That means it’s fully downpour-proof, whilst still exceptionally breathable—going well beyond mandatory kit specifications to keep you dry, cool and comfortable as the clouds open. What’s more, that high performance fabric has been given a DWR finish so those raindrops just roll right off, whilst taped seams and waterproof zips offer further water-resistance.

FEATHERWEIGHT JACKET WITH HEAVYWEIGHT PERFORMANCE

• Created with performance in mind, the Thunderstorm Jacket has a streamlined shape with no excess material to slow you down, along with an ergonomic hood that moves with your headeven on the most winding mountain trails.
• 4-way stretch bands on the wrists means it’s always easy to check your wristwatch, and for those running well into the night, reflective strips on the front, back and wrists mean you’ll always be seen. It’s packable too, and can be quickly folded into itself and stowed away in a pack or Freebelt when the rain finally ceases.
• From UTMB to your next trail marathon and beyond, the Thunderstorm Waterproof 25/75 Jacket is the featherweight jacket with heavyweight performance. You’ll never need to check the weather forecast again.