This is a thin fleece hoodie from Outdoor Research. It has Polartec Alpha insulation in a vest shape on the front. Due to its delicate construction, it may not be suitable for climbing, but it was useful as a second layer for mountaineering or a mid-layer for skiing. It's a women's S size, but a slender 170cm tall man wore it. There are no holes or noticeable fraying, but please understand that this is a used item before making a purchase.