Emergency Bivy Sack — Thermal Survival Shelter

The piece of kit you hope stays in the pack unused. A reflective mylar bivy that traps body heat if you're caught out by weather, a twisted ankle or a night that turns colder than forecast. It folds down to palm size, so there's no reason not to carry it.

Built for the trail

• Reflective mylar lining — reflects body heat back at you instead of letting it escape.
• Waterproof and windproof — a barrier against rain, snow and wind chill.
• High-visibility orange outer — easy for rescue teams to spot in poor light.
• Tear-resistant — heavier-duty than a standard foil blanket.
• Palm-sized — packs into its own drawstring bag.

When to reach for it

Emergency shelter on exposed ground, an unplanned night out, keeping an injured walker warm while help arrives, as a ground sheet, or as the permanent "just in case" item in a daypack, car boot or bug-out bag.

Specifications

Emergency use item. It buys time and warmth in a bad situation — it is not a replacement for a proper sleeping bag or shelter on a planned overnight.