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Bivouac

Our Delta Range is a new generation of active-use sleeping bags. Ultralight and ultra-capable. Suitable as essential kit on a planned extreme ascent through to confidence-boosting backup in any mountain country. Our four half bags mate with down tops to provide very lightweight bivvy options. The Zeta Bags are designed specifically for big wall bivouacs in damp conditions.

Wafer Half Bag: 'K Series'
Our lightest half bag (pied d'elephant) to insulate legs and feet. Camp down to 10°C and bivvy down to between 5°C and 0°C.*
from £188.00
165g
10°C
Alpine Ultra Half Bag
Our Alpine half bag (pied d'elephant) to insulate legs and feet. Camp down to 3°C and bivvy down to -10°C* (with a suitably warm jacket)
from £195.00
250g
3°C
Hispar Half Bag
Our expedition half bag (pied d'elephant) to insulate legs and feet. Combine with expedition down clothing. Camp down to -7°C and bivvy down to between -15°C and -25°C.*
from £241.00
350g
-7°C
Xero Half Bag
Our extreme expedition half bag (pied d'elephant) to insulate legs and feet. Combine with suitable expedition down clothing. Camp down to -30°C and bivvy down to -40°C.*
from £259.00
725g
-30°C
Zeta Primaloft Half Bag
A Primaloft-filled Half Bag for mountain bivis or emergency use. Team with the warm jacket you already carry. Camp down to 10°C (50°F) and bivvy down to 5°C (41°F).*
from £192.00
395g
10°C
Delta 150 Down Sleeping Bag
Very light, packable bag. Neck length for lightness. Ultralight under the stars, or backup on a quick ascent.
from £251.00
385g
6°C
Delta 350 Down Sleeping Bag
Very light, packable bag. Neck length for lightness. Overnighter on a fast mountain climb, or a high ridge traverse.
from £342.00
600g
-5°C
Delta 550 Down Sleeping Bag
Very light, packable bag. Neck length for lightness in big mountains. Combine with down clothing for even lower temperatures.
from £433.00
840g
-17°C
Zeta 1
Specialised synthetic-filled bag for big wall bivouacs in damp conditions. Reliable comfort on an overnight belay ledge.
from £242.00
1200g
-5°C
Zeta 2
Specialised synthetic-filled bag for big wall bivouacs in damp conditions. Reliable comfort on a cold overnight belay ledge.
from £288.00
1600g
-15°C