№ 40734 / SUP Accessories

Bag Expander

$85.00

Spec sheet IndieOut registry

Maker: Western Mountaineering
Made in: San Jose, CA
Type: Accessories
Availability: In stock at maker
Indexed: Apr 10, 2026
Last verified: Apr 10, 2026
Fulfilled by: Western Mountaineering — direct

Made in San Jose, CA by Gary Schaezlein. Handmade down sleeping bags from San Jose since 1970.

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Meet the maker

Western Mountaineering

San Jose, CA · Sleeping Bags & Down

Handmade down sleeping bags from San Jose since 1970. Gary Schaezlein has been filling bags by hand for over 50 years. The gold standard in expedition sleeping bags.

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Details

Western Mountaineering Bag Expander – Down Sleeping Bag Expander for Mummy Bags Increase the comfort and versatility of your sleeping system with the Western Mountaineering Bag Expander , a down sleeping bag expander for mummy bags . Whether you need extra space for broad shoulders, want more elbow room, or plan to share your bag with a partner, this simple addition transforms your sleeping bag into a roomier, more adaptable shelter for the night. Designed to zip directly into any Western Mountaineering mummy-style sleeping bag , the expander adds width without compromising warmth. Like our...