The Rab Ark Emergency Bivi gives one person a compact layer of protection when an outdoor trip does not go to plan. Made from lightweight polyethylene, it is waterproof and windproof, with taped seams helping reduce exposure to rain and moving air.

The heat-reflective material is designed to return body heat towards the user, which can help conserve warmth during an emergency stop. It is not bulky equipment either. At 105g (3.7oz), it adds very little weight to a mountain, tramping, or general outdoor pack.

Packed inside its supplied stuff sack, the bivi measures just 12 x 6cm (4.7 x 2.4 inch). That compact size makes it easy to leave in your emergency kit without taking space away from the gear you expect to use every day.

Emergency gear earns its place by being there before conditions turn. This single-person bivi is a sensible addition when low weight, compact storage, and basic weather protection all matter.

Key Features

• Single Person Design: Provides compact emergency shelter and weather protection for one person.
• Heat-Reflective Material: Reflects body heat back towards the user when warmth needs to be conserved.
• Waterproof Construction: Helps protect the user from wet outdoor conditions during an emergency stop.
• Windproof Barrier: Reduces exposure to moving air when shelter options are limited.
• Taped Seams: Improve protection by reducing water entry through the stitched areas.
• Lightweight Build: Weighs only 105g (3.7oz), adding minimal weight to an outdoor pack.
• Compact Storage: Packs down to 12 x 6cm (4.7 x 2.4 inch) inside the supplied stuff sack.