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A new generation of down bivvy bags. 
Ultralight and ultra-capable.

Delta 150 Down Sleeping Bag
Very light, packable bag. Neck length for lightness. Ultralight under the stars, or backup on a quick ascent.
from £264.00
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 £359.00
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 £455.00
840g
-17°C