Helium 15 Sleeping Bag, Arctic Navy, Dark Azure/long Size:LONG LZ This style features the Fiberglass

This style features the Fiberglass patented Dually Shank System™ for torsion stability and midfoot support and a puncture resistant insole

Thread Length: 3-1/2 in

heal and promote healthy skin

PillowLock system prevents your Sea to Summit Aeros Pillow from slipping

But best of all

Helium 15 Sleeping Bag, Arctic Navy, Dark Azure/long Size:LONG LZ This style features the FiberglassWith an optimal ISO tested comfort rating that teeters above or below zero, the Helium packs serious warmth in a super packable 800 fill power down bag designed to easily stuff into any overnight pack. A thru hiking favorite, this high performance bag provides lightweight warmth thats also light on the Earthperfect for when you're looking to maximize miles or speed in the mountains and minimize weight and space in your pack.