Light Blue PAKA Crew Neck Sweater No size tag, but size appears consistent w/ a unisex XS From their site: Our best-selling crewneck sweater is powered by 65% Royal Alpaca - a natural fiber known for warmth, breathability, and durability. Unlike traditional wool, alpaca helps regulate temperature while resisting odor for longer wear between washes. This super soft alpaca sweater is a naturally smarter layer you can rely on year-round. 65% Royal Alpaca Fiber / 35% Recycled Nylon For traveling, multi-day hikes, walking the dog, dinner with friends, dawn patrol, staying cozy