40s VTG Knit Varsity School Letter Sweater Blue 100% Wool Mens m/L The label just says guaranteed 100% pure wool. Perfect sweater, with great celluloid buttons, seems little to no wear, no holes or stains. Ready for a letter! Patch pockets, long ribbed knit cuffs. The size isn't marked. Sleeves seem kinda short. Chest:22" across Length from shoulder:25" Sleeve from shoulder:20" uncuffed Shoulders:20"