With the Fjällräven Byron Hat Thin beanie, youll be ready for any outdoor activity this winter! Plus, its stylish enough to wear every day! Despite how light it is, it will still keep your head nice and warm. It is made of wool, which is naturally odour resistant and temperature and moisture regulating. In other words, the Fjällräven Byron Hat Thin beanie is great for more strenuous winter activities as well!