Whittaker Mountaineering
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Forty Below Camp Booties™

The synthetic insulated camp bootie for mountaineering, winter camping, and even around the cabin, hut, or house!  Now your feet and toes can be nice and toasty after a hard day on your adventure!  These will be a favorite for all of your trips, year-round!  The Forty Below® Camp Booties™ are insulated with a continuous filament polyester fiber, so they dry fast if they get wet.  They also provide insulation even if wet, as compared to down/feather insulation which provides no insulation when wet, plus may not ever get dry again during a trip. This synthetic insulation goes completely around and under your foot.  The 5/8” wide ribbon style lacing goes over the top of the forefoot and around the leg, to tie in the front with a bow.  It helps provide support and control on your foot, no more floppy booties!  They are very compact, and superlight at only 10 ounces per pair size medium!

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The synthetic insulated camp bootie for mountaineering, winter camping, and even around the cabin, hut, or house!  Now your feet and toes can be nice and toasty after a hard day on your adventure!  These will be a favorite for…

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Specs Sizing

The sole is made of a thin waterproof unique rubber, embossed into a fabric with a small dot pattern, that stays flexible at 40 below and sheds snow easily. The lower side rand is made of Cordura nylon that is waterproof coated.  Taffeta nylon upper, and taffeta nylon lining to make them easy to take on and off with wool socks on.  Drawstring with cordlock top closure.  A very helpful feature is the removable closed cell foam footbed, so you can wear the Forty Below® Camp Booties™ inside the plastic mountaineering or ski boot shell when it is removed, helpful when your boot liner is drying.  Machine and hand washable.  Air or low heat dryer for drying.

  • Weight: 10 oz. per pair size Medium.
Small Women's 5-7
Medium Women's 8-9 / Men's 7-10
Large Women's 10+ / Men's 10.5-12
XL Men's 12.5-16


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Reviews 54321 5/5 stars based on 16 reviews.


Kept feet toasty warm!

I recently (March) spent 8 days on Mt. Rainier, of which, 7 of the days were very challenging, weather-wise. These booties kept my feet warm and dry at night and while in the tent. When our cooking tent went down under heavy snowfall, we were forced to cook and melt snow in our vestibules. The booties were perfect for keeping my feet warm while cooking. I didn't wear them outside, as we had deep fresh snow (or rain) almost all the time... and it wouldn't have made sense to even try to wear them outside. I am very happy with these booties and look forward to getting more use out of them in the future.

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I bought these to replace an old pair of down booties. The old booties rolled around on my foot so that I was not consistently standing on the closed cell insulation but frequently on the down insulated portion--this also made the booties prone to lose traction and be slippery. Used the 40 Below Booties on a recent multi-day Teton hut trip and found them excellent! The lacing system keep them in place on my foot. Used them in the hut and for trips (through the snow) to the outhouse. Highly recommended!

Use Situation: see above

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Very comfortable and warm; can't wait to try them out in the snow

These booties fit true to size with plenty of room for mountaineering thickness socks. They are nice and warm around the house. All that keeps me from giving them five stars is the fact I haven't tried them yet for the reason bought them, I.e., snow camping. I expect they won't disappoint.

Use Situation: Just around the house so far; planning a snow backpacking trip to the Sierras later this winter. That will be the true test.

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Exactly what my son in law wanted.

He said they were perfect! Put them on and walked around in them as soon as he opened them!

Use Situation: Gift

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Keeps The Feet Toasty!

This is a great product. I recommend it to everyone.

Use Situation: alpine camping

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Bloody warm, alright.

At 40 degrees, they were too warm in only a few minutes. They'll remain in inside my bag for those sub zero nights. Great quality, thx.

Use Situation: Around camp

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Very warm!!!

These booties are great for lounging at home or at the campsite. Great at keeping my feet warm on cold nights.

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Great Product

Keep my feet nice and warm. Great for at home or relaxing at camp. Very happy with this product.

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Excellent- one of the best gear purchases ever.

One of the most vexing things for me about cold weather backpacking is keeping my feet warm in the tent. I did not want to go with down and I wanted to have a sole so that my booties would survive a night time excursion to pee. These booties were so soft, nice, and comfortable I felt like a new woman after a hard day on the trail! They kept my feet nice and toasty and did wonders for my overall comfort even as I was listening to the sleet and freezing rain pound on my tent.

Use Situation: Multi day Backpacking

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Warm on Kili

I suffer from Raynauds and worried about my feet on Kili, especially after a friend said how cold her feet were at night on the mountain. Another friend recommended these. Unlike a lot of the other booties out there these have an insert and also tie around the ankle to give you support. They were warm at camp-I switched from my hiking boots to these soon as the days hiking was over. They were warm at night while the rest of me froze. The inserts seem a bit long for the boots and tend to bunch against the back and the bottoms could be tougher-I worry they will rip on rocks-which is why they lost a star. I plan on cutting the inserts down or just replacing them. The boots are lightweight and warm and recommended for cold camping. I sized up and was glad I did. The blue color was pretty smile I will use these for more general camping but will probably upgrade for my next major mountain climb.

Fit: Slightly Small

Use Situation: On Kilimanjaro at camp to walk around and to sleep at night

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