Kilpi RAYEN-M, is a men's running jacket made of ultra-light and breathable SIBERIUM material, which is treated with a lightweight DWR water-repellent layer. The more stressed parts, such as the hood, chest and shoulders, are made of densely woven windproof material. Breathable, mesh material is used on the back and armpits, which lightens the weight of the jacket, which is only 200 grams in size M. The jacket can be easily packed into one of the two zippered pockets, or backpack. The sleeves are elongated, with a thumb hole. On the left sleeve there is a hole for the watch. The front zipper is two-way and will serve for better ventilation. A looser fit won't restrict your movement. Of course, Kilpi products have distinctive reflective elements. The Kilpi RAYEN-M is available in several colour variants.Material composition: 100% nylon