You're expending an awful lot of blood, sweat, tears, time, and money to get yourself to the Himalayas for the trip of a lifetimedon't blow it all by scrimping on a sleeping bag. The Sherpa Adventure Gear Tenzing 1 Sleeping Bag was designed for at tested in some of the harshest environments on the planet, including Mount Everest itself. Packed with premium 800-fill European goose down, this bag is rated to -40F degrees so you can count on being among the warmest denizens of base camp once darkness descents. For what it's worth, you'll also have the raddest-looking bag there, hands-down.