Vintage 1990s Geometric Color Blocked Knit Pullover Crewneck Grandpa Sweater Large Great Condition! Michael Gerald Vintage Grandpa Sweater Large Gray Blue Block Colors. Has that vintage sweater fit we’re shoulder seams come down below shoulders and sleeve length is shorter. Measurements laying flat: Shoulders:26” Chest: 24” Sleeves: 21” Biceps width: 8.5” Length:24”