Boost 650 20F/-6C Long Surrey IPX4: Storm proof—Tested to withstand

IPX4: Storm proof—Tested to withstand rain and sleet from any angle

Engineered Mesh Upper balances breathable comfort and support while a plush tongue and Collar offer additional comfort

Light-weight

Tech Form liner

The solution: Beyond Yoga's new in-between 5" inseam

Boost 650 20F/-6C Long Surrey IPX4: Storm proof—Tested to withstandComfort is not one size fits all, which is why the Boost 650 empowers you to customize its shape to find your perfect balance of space and warmth. As a spacious semi rectangular sleeping bag the Boost provides all the room you need to side sleep, shift about, spread out and relax. The semi rectangular shape gives you considerably more internal space than a mummy bag youll feel unrestricted and free to sleep in whatever position you want all night