Caribou MF

$374.00 - $418.50
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Light and efficient wide-cut mummy; 35° F

Traditionally, the lightest-weight sleeping bags are made with extremely light, fragile ripstop nylon shells. Western has created their Caribou MF to be durable as well as lightweight by using Microlite XP™ instead, a highly wind- and water-resistant and incredibly breathable microfiber. This 1 lb 5 oz mummy bag has a full-length zip and is cut wide for a more comfortable fit, even with broad shoulders or layers. With its highly breathable shell and efficient sewn-through construction, the Caribou MF is a perfect summer bag and a great choice for Appalachian Trail thru-hikers.

Like all Western Mountaineering bags, the Caribou MF is made by hand in San Jose, California. Their down is sourced from free-range mother geese who are never live-plucked or force-fed.


Western Mountaineering
Navy Blue
Bag Style:
Seasonal Usage:
Temp Rating:
35º F
Temp Rating Celsius:
2° C
Fill Weight:
Short: 9 oz / Reg: 10 oz / Long: 11 oz
Bag Loft:
3.5 inches
850+ Fill Down
Short: 1 lb 4 oz / Reg: 1 lb 5 oz / Long: 1 lb 7 oz
Bag Length:
Short: 5 ft 6 in / Reg: 6 ft / Long: 6 ft 6 in
Circumference at Chest:
Short: 63 in / Reg: 64 in / Long: 65 in
Circumference at Hips:
Short: 56 in / Reg: 55 in / Long: 56 in
Circumference at Foot:
Short: 39 in / Reg: 39 in / Long: 39 in
Shell Material:
20-denier MicroLite XP™: highly wind- and water-resistant and incredibly breathable microfiber
Stuff Size:
Short: 6 x 10 in / Reg & Long: 6 x 12 in
Made In:
• 10 in. box quilting for maximum down control
• YKK #5 double pull zipper
• Stiffening tape along zipper to prevent snags

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