GSI Outdoors Microlite 500 Flip

Extremely light half-liter insulated bottle made of stainless steel.

The GSI Outdoors Ultralight Vacuum Bottle is probably the lightest thermoses of this size in the world. It weighs a straight 224 grams. A double-walled, vacuum-formed stainless steel body ensures good isolation. The thermoses insulates hot or cold contents for up to eight hours. Thanks to the practical closure, you can use it with just one hand. Whether you're in the office or on Piz Buin, this vacuum flask will keep you ahead of the game.