Mountain Hardwear · Sleeping Gear

Phantom Windstopper Sleeping Bag 0F/-18C

Name: Phantom Windstopper Sleeping Bag 0F/-18C
Brand: Mountain Hardwear
Price: 1287.00 CAD
Availability: InStock

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About this product

The Mountain Hardwear Phantom Windstopper Sleeping Bag is an expedition-grade mummy bag engineered for serious alpine use, rated to 0F (-18C) with an EN comfort rating of 13F (-11C). The shell is constructed from GORE-TEX Windstopper 30D 2-layer nylon ripstop at 57 g/m², delivering windproof, highly water-resistant, and breathable protection that keeps 800-fill goose down performing even in wet, severe conditions. The 15D nylon ripstop lining at 34 g/m² keeps interior weight minimal. The expedition mummy cut provides enough room to store gear inside during freezing temperatures, while vertical side-wall baffles maximize loft and warmth retention. A shaped draft collar, oversized down-filled face gasket, and fully cinchable hood work together to seal out cold air. The contoured footbox follows the natural foot position for added comfort. The regular size fits users up to 72 inches (183 cm) and compresses to 692 cubic inches (11.3 liters); the long accommodates up to 78 inches (198 cm) at 741 cubic inches (12.1 liters). Both sizes pack to 17 by 9.5 inches (43 by 24 cm) and include a nylon compression sack and mesh storage sack.

Category: Sleeping Gear
Brand: Mountain Hardwear
Material: Lining: 15D Nylon Ripstop 34 g/m²
Color: Colour: Alpine Red
Size: 17 in x 9.5 in / 43 cm x 24 cm
Bag Shape: Expedition Mummy
En Rating: T-COMFORT: 13 F / -11 C
Fabric Body: GORE-TEX® Windstopper 30D 2-Layer Nylon Ripstop 57 g/m²
Bag Fill Type: 800-Fill Goose Down
Fabric Lining: 15D Nylon Ripstop 34 g/m²
Approx. Weight*: 3 lb 10.3 oz / 1652 g

What people are saying

Reviewers consistently praise the Phantom Windstopper 0F for its exceptional warmth-to-weight ratio, calling it one of the best 0F bags on the market. The 850-fill-power down, full-length draft tube, shaped draft collar, and contoured footbox earn repeated acclaim for keeping users genuinely warm at or below its rated temperature. The Gore-Tex Windstopper shell is highlighted as a standout feature for bivy and exposed alpine use, offering windproof and highly water-resistant protection. The most common criticisms are the snug, restrictive mummy fit (noted as uncomfortable for those who like to move around), the added weight and bulk of the Windstopper shell compared to the standard Pertex version, and the steep premium price. Some reviewers also note that the Windstopper shell breathes less efficiently than the standard shell when used inside a tent, potentially trapping body moisture.