The Cosmos helmet bag is designed to keep your helmet dry and protected. The Cosmos has unique built-in drying system with a 12V fan and ventilation holes. The 12V fan is powered by a USB chord, so any powered USB adapter up to 12V will work (phone and tablet chargers, etc). The bag itself is constructed from 600D polyester with neoprene and synthetic leather inserts. The Cosmos can accommodate helmets with a HANS device still attached. For transport convenience the Cosmos features 2 carrying handles and a shoulder strap.