Revolutionary gaiter designed to extend the range of traditional crampon-compatible mountaineering boots for the very best warmth when you need it most.
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Outdoor Research was founded on the X-Gaiter. Our first ever product, inspired by a frostbite fail on Denali, was the first of its kind. Built for the most extreme weather and encapsulated by a rugged, insulated interior with an easily-adjustable, and easy-to-repair instep strap. So naturally, the 2019 version of this industry-revolutionizing classic builds off this legacy of alpine protection with a few improvements: Unprecedented warmth, streamlined fit with minimal bulk, and an incredibly lightweight construction that's versatile enough to suit your favorite seasons and mountain sports. How did we manage to pack all that in?

A 90D ripstop stretch double weave provides rugged durability against the elements that still allows for a flexible on-off design, enhanced by a stretchy and snug neoprene along the ankle and back of calf. A neoprene circumference grips the edge of your boot and stays put without slippage, and a hook-and-loop entrance allows easy manipulation - even when dexterity is compromised by large mitts. Its versatile design balances the best and worst qualities of crampons with a pliable lip that secures over your toe and heel welts, while an exterior silk screen print acts as a scuff guard to resist punctures caused by these fail-safe tools. Trusted by NASA, the compression-resistant and advanced warmth of PrimaLoft® Aerogel insulation covers toes and entire lower half of boot. Finally, an adjustable shock cord is easily manipulated and field-maintainable in the event of any emergency.

Perhaps the best quality of the newly redesigned X-Gaiter is its total versatility. Compatible with mountaineering boots as well as ski touring boots, the X-Gaiter does the work - and provides the protection - of a traditional high-altitude boot without the cost, bulk, or limited use case. There's no question about it: This dramatic transformation of the best legacy footwear protection in the industry is going to be the best choice for every single one of your next alpine objectives.

For more information check out X-Gaiters: Everything You Need to Know.


Product :

Fabric :
50% Nylon, 43% Polyester, 7% Spandex, 90D Stretch Woven Double Weave, Primaloft® Aerogel 2mm Insulation, 91% Polyester, 9% Elastane, 3mm Neoprene at Back of Leg

Weight :
16.8 oz./477 g


Fabric Performance
Insulating and Stretch 3mm Neoprene
Water Resistant
Abrasion Resistant Stretch Double Weave

Design Features
Primaloft® Aerogel Insulation Completely Covers Toes and Lower Boot
Hypalon Toe Cap to Prevent Toe Lift Up
Adjustable Shock cord and Neoprene Rand with Silicone Print to Seal Around Boot
Neoprene Back Panel for Snug Fit
Hook and Loop Front Closure
Hook and Loop Top Hem Closure
Crampon Compatible
Hypalon Strap Cordlock Keeper


Top Circumference:
15in (XS)
15.5in (S)
16in (M)
16.5 (L)
17in (XL)
Center Back Height:
12in (XS)
12.5in (S)
13in (M)
13.5in (L)
14in (XL)

Rating and reviews

Technology 1/1


The Infinite Guarantee®

Outdoor Research® gear is guaranteed to perform throughout the lifetime of the product. Get your gear back on track by filing a claim on our Warranty Page

Have a question? Problem? Other request? We’re here to help you find a solution.

Our customer service is waiting for your call at 855-967-8197, on weekdays Monday-Friday between 8am-5pm PST. If you prefer email, you can send your query to info@outdoorresearch.com

Thanks for getting in touch. We can’t wait to get you back outside with your gear.

Machine wash cold, separately. Powdered Detergent. Do Not Bleach. Do Not Use Fabric Softener. Drip Dry. Do Not Machine Dry. Do Not Dry Clean.

X-Gaiters size guide


*Size up 1 full size for use with 800-meter double boots.

Measurement shown in: Us
Unisex XS S M L XL
Men's 5.5 – 737 - 39.5 7.5 – 8.540 - 41.5 9 – 1042 - 43.5 10.5 – 11.544 - 45 12 – 1345.5 - 47
Women's 6.5 – 837 - 39.5 8.5 – 9.540 - 41.5 10 – 1142 - 43.5 11.5 – 1244 - 45 45.5 - 47

How to measure


Please refer to your shoe size.

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