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Bivvy Bag

Waterproof emergency sleeping bag that provides shelter from wind, rain, and cold. More durable than an emergency blanket.

Bivvy Bag

Why it matters

A bivvy bag is the step up from an emergency blanket. It fully encloses you, blocking wind and rain while trapping body heat. In UK conditions where rain and wind are constant threats, a bivvy bag can genuinely save your life during an unplanned night outdoors.

Features to look for

Breathability

Cheaper bags cause condensation. Look for breathable membranes like Gore-Tex or eVent.

Weight

Emergency bivvies: 100–200g. Reusable quality bivvies: 300–500g.

Zip access

Full-length zips make getting in and out much easier.

Common mistakes

Not practising getting into it

In an emergency, fumbling with a bivvy bag wastes precious body heat. Practise at home.

Top picks · Trusted suppliers

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