Hotter than an active LZ the Heat Wave Woobie Hoodie is the ultimate defrosting device for any cold-world situation. We made sure that the Heat won't stop during winter & the Woobie hoodie's quilted polyester construction provides above and beyond insulation and warmth while maintaining a slim-cut profile and easily pack-and-stashable size. More Woobie Details: 100% nylon Rip-Stop construction Ultra-warm 100% polyester batting for heat retention and quick drying Water Resistant Elastic ribbed cuffs and garment bottom Do not use near open flame