This travel blanket is fantastic, and we bring ours with us whenever we travel by plane or train. Coolmax is a poly material that breathes well but retains heat but not moisture. It's the same material that's in our favorite socks. It's like a warm sheet essentially. We have one of these and one Snugpak Travel blanket in our kits, and it is comfy down to 50° F.

Expanded Size: 70"L x 55"W - Packed size: 7"L x 4"W. Weight 12 oz.