Antelope Gore Infinium

$820.00 - $870.00
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Wide-cut 5° F mummy with a Gore Infinium shell.

When places like the Cascades or Rocky Mountains are your stomping grounds and you need a light and warm bag to push the 3-season boundaries, leave nothing to chance with the Western Mountaineering Antelope Gore Infinium. It features a Gore Infinium shell: the most water-resistant, windproof, and breathable fabric suitable for sleeping bags for extreme weather protection. The down-filled collar and draft tube are also made with Gore Infinium to prevent moisture absorption and keep the wind out of your bag. The Antelope's roomy 62" shoulder girth allows for comfort and the 7" loft from 26 ounces of high-lofting 850+ down provides warmth to 5° F. The neck and zipper of this bag are sealed with a full 3-dimensional down-filled Super Collar and a robust draft tube. This 5° F sleeping bag takes over in early spring and lasts till late fall, and is the most substantial of Western's 3-season bags.

Like all of Western Mountaineering's bags, the Antelope 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.


The GORE-TEX INFINIUM™ WINDSTOPPER® series enhances quality and performance, combining versatile aspects of support and comfort without the need for total waterproof protection. Durable water resistance combined with increased breathability, better packability, and optimized lightweight elements are the defining features of this technology. GORE-TEX INFINIUM™ WINDSTOPPER® is totally windproof and provides highly water-resistant protection for unstoppable performance.


Brand Name:
Western Mountaineering
Royal Blue / Black
Bag Style:
Seasonal Usage:
Three Season
Temp Rating:
5º F
Temp Rating Celsius:
-15° C
850+ Fill Down
Bag Shell Material:
GORE-TEX INFINIUM™ WINDSTOPPER®: windproof, virtually waterproof, and breathable
Bag Loft:
7 inches
Short: 2 lbs 10 oz / Reg: 2 lbs 13 oz / Long: 2 lbs 15 oz
Fill Weight:
Short: 24 oz / Reg: 26 oz / Long: 28 oz
Bag Length:
Short: 5 ft 6 in / Reg: 6 ft / Long: 6 ft 6 in
Circumference at Chest:
Short: 62 in / Reg: 62 in / Long: 63 in
Circumference at Hips:
Short: 53 in / Reg: 53 in / Long: 54 in
Circumference at Foot:
Short: 39 in / Reg: 39 in / Long: 39 in
Bag Stuff Size:
9 x 18 in.
Made In:
Other Features:
  • Full down-filled Super Collar completely surrounds your neck for maximum heat retention
  • Full-length draft tube seals in heat along the zipper
  • 5.25 inch continuous baffles allow you to shift the down underneath you in warmer temps and on top of you in cold temps
  • YKK #7 dual direction zipper
  • Stiffening tape along zipper to prevent snags

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