MSR E-Bivy

15D Ripstop Nylon, Xtreme Shield / Packed Size: 18 x 10cm / Non Hoop
Weighs 178g (excluding bag)
Code: SS19141
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This ultralight emergency bivy sack offers the ideal amount of protection for wide range of situations without adding much to your pack—making it the perfect backup shelter.

MSR says:

The diminutive, ultralight and weather-resistant E-Bivy sack can be tossed into a pack lid on any trip, providing essential protection for an unplanned night in the hills, or added warmth and comfort when used under tarps or on open bivies. Its silicone-coated fabric top blocks wind, dew, spindrift and precipitation, making it the perfect emergency shelter.

MSR's E-Bivy is MSR's lightest and most compact, water resistant bivy, now 25% lighter than the previous version. It does exactly what a good bivy should; it offers protection from wind, damp ground surfaces and morning condensation, all without burdening your pack with excess weight. The pack size is excellent too, packing  smaller than a Nalgene bottle so it doesn't take up valuable room in your pack.

If you're looking for a minimalist camping shelter you can combine it with a tarp and lightweight sleeping bag to provide a warm and dry nights sleep. It can also be tossed into a pack lid on any trip, providing essential protection for an unplanned night in the hills.

- Reviewed by Ultralight Outdoor Gear

MSR's Xtreme Shield Fabric Coating
Combines a revolutionary, durable waterproof coating with strong, precision-stitched seams to maintain your tent's weather protection - and quality - far longer than ever before. Find out more about how this technology works here.

  • Ultralight: Ultra-packable & ultralight emergency shelter is easy to take with you.
  • Reliable: Durable bivy offers warmth & weather-resistance when you need it
  • Protection: Silicone coated fabric top; Xtreme Shield™ waterproof floor.
  • Weight: 172g (excludes storage bag)
  • Capacity: 1 person
  • Length: 2.24m (88in)
  • Width of top: 0.91m (36in)
  • Width of bottom: 0.58m (23in)
  • Packed size: 18 x 10cm


  • Top: 15D ripstop nylon coated
  • Floor: 15 D ripstop nylon 1200mm Xtreme Shield polyurethane & DWR
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