NYFASHION101 Braided Trim Spring Summer Cotton Lace Vented Fedora Hat One size fits most for this spring/summer cotton lace fedora hat. This hat is made with 100% cotton. The brim measures 2.25". This fedora blocks 98% UVA/UVB rays, with UPF 50+ as well. Vented cotton lace fedora to keep your head cool while looking fabulous! Lightweight and vented to allow the head to breathe on those hot, sunny days.