WarmWool Hoodie is Aclima’s most popular hoodie. With our functional three-stage function, you can choose between round neck, a high collar or balaclava – all in one garment. A snug fit, it works best closest to the body on cold days. WarmWool is a knitted material and thus elastic and flexible. The fabric is made of 100% merino wool, with a weight of 200gsm.