Hyperlite Mountain Gear's Insulator is built for winter backpacking, when your water bottle needs help staying above freezing rather than below it. Fill a wide-mouth Nalgene with heated liquid before you set off, slot it into the Insulator, and Thinsulate™ insulation slows the heat loss through the coldest stretches of the day. The shell is built from Dyneema® Composite Fabrics for genuine durability without adding weight, and a secure Velcro strap attaches directly to your pack's hip belt for quick access on the move. A mitten-compatible grab handle on the back means you can pull it free without taking your gloves off.

Features

• Keeps liquids from freezing in cold conditions.
• Fits a wide-mouth Nalgene bottle, filled with heated liquid before heading out.
• Thinsulate insulation and Dyneema Composite Fabric shell keep weight down without sacrificing warmth retention.
• Secure Velcro strap attaches directly to a pack's hip belt for quick access.
• Mitten-compatible grab handle allows use with gloves on.
• Ideal for alpine or snowy expeditions.

Specifications