Thermarest Boost 650™ 20F/-6C Sleeping Bag Speaker Width at Waist: 4

Width at Waist: 4

multi-position helmet carry net

The X is for x-tremely comfortable and supportive

Flashing Runtime 110 hours LOW

or sailing on a lake

Thermarest Boost 650™ 20F/-6C Sleeping Bag Speaker Width at Waist: 4Ultra comfy three season backpacking sleeping bag with adjustable shape and warmth. Customizable Comfort: Enjoy the spacious freedom of the semi rectangular bag or the cozy warmth of a mummy bagpick the shape and temperature that keeps you comfy at night with just a zip. WarmZip Tech: Patent pending center zipper design zips up to reduce the bags internal space and tuck insulation around the sleeper to boost warmth by up to 10F 6C. Multi Use Arm