What Our Gearhead® Experts Are Saying:

"This sleeping bag is a lifesaver in frigid temperatures. I've used it on winter trips in the Scandinavian mountains and found it keeps me warm well below freezing, especially with the breathable and waterproof Stormshield fabric keeping moisture out. It's the perfect bag for extreme winter expeditions."

For those of us who venture into the world's harshest winter environments, the Western Mountaineering Puma Stormshield delivers the ultimate level of warmth and protection. This unique winter sleeping bag is crafted with Stormshield—a windproof, waterproof, and vapor-permeable outer material designed to keep the high-loft 850-fill goose down dry, even in the coldest, most unforgiving settings. With an impressive comfort rating down to -25°F, the Puma Stormshield is a trusted companion for cold-weather expeditions and single-wall tent bivouacs where every ounce of warmth counts.

The bag's three-dimensional, fully insulated thermal collar and overlapping zipper covers shield from the elements, ensuring that precious body heat is conserved even in severe conditions. Inside, the roomy foot box and wide hood lined with durable taffeta provide comfort and durability, making space for extra clothing or gear without compromising the loft. Whether we're in snow bivouacs or enduring biting winds, this bag's unique prototype design proves Western Mountaineering's commitment to unparalleled quality in extreme winter sleeping gear.

Similar Down Sleeping Bags

Down Sleeping Bags (117)

Synthetic Sleeping Bags (83)

Kids' Sleeping Bags (10)

Brand

Big Agnes (12)

Kelty (8)

Marmot (12)

Mountain Hardwear (19)

NEMO Equipment Inc. (12)

Rab (2)

Sea To Summit (9)

The North Face (10)

Therm-a-Rest (5)

Western Mountaineering (28)

Color

.css-2gcc7g{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#369;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}blue (32)

.css-1nhbdo3{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#093;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}green (23)

.css-1pgjne4{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#ccc;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}gray (16)

.css-uc0kmc{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#f93;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}orange (12)

.css-1c4afls{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#f00;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}red (12)

.css-1ryiaxq{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#ff0;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}yellow (8)

.css-yab3pc{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#000;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}black (6)

.css-7bc19j{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#963;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}brown (3)

.css-2z3tn4{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#efb780;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}beige (2)

.css-19q3wht{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#f39;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}pink (1)

.css-1ingyn9{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#639;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}purple (1)

.css-yle8g5{height:23px;width:23px;border-radius:50%;margin-right:var(--chakra-space-1);background-color:#fff;box-shadow:inset 0 0 0 3px #fff,0 0 0 1px #ccc;}white (1)

Gender

unisex (105)

female (9)

male (3)

Sale

10% and more (117)

20% and more (5)

30% and more (5)

40% and more (3)

Features

Draft Collar (83)

Abrasion Resistant (53)

Hydrophobic Down (42)

Venting (38)

Pockets (24)

Pad Retainer (11)

Waterproof (9)

Price

$100 - $199.99 (27)

$200 - $499.99 (50)

$500 - $999.99 (33)

$1000+ (7)

Recommended Use

Backpacking (96)

Weekend Camping (88)

Winter Camping (36)

Mountaineering (29)

Shop By

Gearhead Picks (7)

Shape

Mummy (99)

Semi-rectangular (16)

Rectangular (4)

Responsibility

Recycled/Repurposed (49)

Responsibly Sourced (46)

Bluesign Approved (13)

Temperature Rating

15º to 35º F (73)

-15º to 10º F (27)

< -20º F (11)

40º F + (7)

Customer Reviews

.css-xlp1m2{display:inline-block;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;gap:var(--chakra-space-1);margin-right:var(--chakra-space-1);}5 stars (50)

4 stars & Up (77)

3 stars & Up (82)

2 stars & Up (83)

1 star & Up (84)

Badger MF Sleeping Bag: 15F Down

Sycamore MF Sleeping Bag: 25F Down

Everlite Sleeping Bag: 45F Down

Green Kazoo Sleeping Bag: 0F Down

blue (32)

green (23)

gray (16)

orange (12)

red (12)

yellow (8)

black (6)

brown (3)

beige (2)

pink (1)

purple (1)

white (1)

5 stars (50)