Tyono 20 nylon, polyester (outer), Coreloft polyester (inner) Meant to be worn as outerwear in warm weather or as being a technological midlayer in Winter season, the Arc’Teryx Atom Vest provides year-spherical wearability. We examined it in 70 degree weather conditions whilst climbing to the Seashore and also for a Wintertime ski layer, and foun… Read More