This one piece is very warm and useful even in the mountains. I've worn it about 5 times. I'm selling it because it's too small now. This crewneck is soft, warm, and comfortable, made from a quick-drying, 100% recycled microdenier polyester fleece. It can be worn alone or as a mid-layer. Made in a Fair Trade Certified factory. - Brand: patagonia - Size: 2T - Color: Blue, green, white, and brown geometric pattern - Design: Long sleeves, crew neck, geometric pattern - Condition: Good Thank you for looking.