100% soft polyester fleece material, but looks like expensive wool blend. Excellent pre-owned condition. Trim fit. "Small" size tag removed, but call to Patagonia confirmed size Small given measurements. Across shoulder to shoulder edges 13.5" Armpit to armpit 18.5" Across hips 19" Shoulder to hem 23" From Web: Details: Patagonia Better Sweater Vest in Blue (touch of green) Size Small * A versatile vest for both active and casual pursuits * Smooth-face fleece provides breathable warmth and style * Hidden wind flap behind zippers helps keep the chill out * Hand pockets offer a spot for cold hands or small items * Bluesign-approved fabric reduces the product's environmental impact * Slim fit looks sleek and on-point as you explore The clean, classic style of Patagonia's Better Sweater material combines the timeless look of wool with the easy maintenance of polyester. This vest's fleece interior offers warmth without restricting movement, so it can be worn beneath a shell on cold ski day or layered over a flannel for nights on the town.