By folding into its mini pockets, it can be taken everywhere, from your trails to the gym through your night run. The reflective On logo on the elbows makes you visible for safe night runs. Windproof and fully waterproof, it allows you to run, hike or cycle, rain or shine. Underarm ventilation keeps you cool and dry when you work up a sweat. Made from recycled polyamide. Perfect for you and the planet. So light you'll forget you're wearing it, except when it's protecting you from the elements How? The mini-ripstop, a light and protective fabric, weighs only 29 g per m² (compared to 160 g for t-shirts considered light). Nothing holds you back, especially not the weather.