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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 ¥28,291
165g
10°C
Desert Race 'Sleep System' Combo Package
Desert Race half-length sleeping bag & Down Pullover combination at 10% discount
from ¥71,660
440g
3°C
Desert Race Halfbag
A superlight half-length sleeping bag. With extension tube to protect against dust & wind.
from ¥35,758
240g
3°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 ¥29,439
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 ¥36,333
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 ¥49,832
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 ¥29,009
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 ¥37,912
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 ¥51,555
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 ¥65,341
840g
-17°C
Zeta 1 Primaloft Sleeping Bag
Specialised Primaloft-filled bag for climbers' bivouacs in damp conditions. Reliable comfort on an overnight belay ledge.
from ¥41,933
777g
-4°C
Zeta 2 Primaloft Sleeping Bag
Specialised Primaloft-filled bag for climbers' bivouacs in damp conditions. Reliable comfort on an overnight belay ledge.
from ¥45,954
1120g
-20°C
Zeta Primaloft Overbag
Used in combination with your Zeta bag to boost its warmth by 24°C. This Specialised Primaloft-filled overbag is also cut to fit over our Ultra K, Minimus and Minim 400 down sleeping bags.
from ¥43,657
870g
-4°C