Mountain Hardwear Absolute Zero Overboot

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My winter hiking experience is almost all in the Adirondacks…

Rating: rated 4.5 of 5 stars
Fabric: nylon/gore tex
Fill: closed cell foam
Price Paid: $99

My winter hiking experience is almost all in the Adirondacks in New York and the White Mountains in New Hampshire. I have spent several weeks in the Mount Washington area in the winter with crampons and snowshoes, and I have tried a variety of ways to keep my feet warm: leather boots, plastic boots, vapor barrier socks, supergaiters, and overboots.

In my experience, overboots are the best solution for the coldest conditions, with the caveat that overboots are not suited for walking on their own, except as camp booties, because they cover the entire sole of the boot. You have to use them with crampons, snowshoes, or skis.

The Mountain Hardwear overboots are built extremely well with very tough materials and Gore-tex. They have well thought-out straps to cinch the top and over the instep to secure the boots within the overboot. There is a wide velcro opening over the area of the boot laces.

Fit can be an issue, depending on what you are looking for. These run large compared to some other brands of overboot. I prefer that because it helps adapt to a wider range of weather conditions, but it underscores the need to try them out with boots and crampons to ensure they work.

Warmth can also be an issue. If you are going to be in a deep freeze, -20 farenheit and below, there are Outdoor Research and Forty Below overboots that may work better for those conditions unless you customize. The standard insulation in the Mountain Hardwear overboots are a series of relatively thin pieces of closed cell foam, on either side of the foot and in the sole. The toes and top of the foot are not insulated, which could be problematic in very cold weather unless you customize.

My personal rule of thumb is that the overboots are good to about zero farenheit in their 'off the rack' conditions. Fortunately, these are sized large and can handle a lot of extra insulation. I have two pieces of hand-cut closed cell foam that I stuff into the overboot and that surround my feet, including the sole, sides, toes and top of the boot, an arrangement that fits well and keeps my feet warm in the worst conditions. It's the same concept as a mukluk.

One final note: keeping your feet warm involves a variety of issues, not just overboots. You need to think about the whole combination of socks, boots, and overboots you plan to use, the straps for crampons or snowshoes (rigging them very tight constricts circulation), and how much your feet sweat. Wet socks won't keep you as warm; I use vapor barrier socks over a wicking liner in sub-zero weather.

You also need to test everything in advance to make sure your feet have room in the boots; wearing extra-thick socks inside boots that don't have enough volume can cut off circulation too, and that means colder feet.

Retailers' Descriptions

Here's what other sites are saying:

Prep for that next expedition to the arctic or the Himalayas with Mountain Hardwear's ultimate Absolute Zero Overboots. Get maximum foot protection in all frigid conditions with GORE-TEX waterproofing, closed-cell foam insulation, and abrasion-resistant Duraguard fabric.

- Mountain Gear

Mountain Hardwear Absolute Zero Overboots keep your feet warm when you're mountaineering at high altitudes in ranges like Alaska or the Himalayas. If the altitude is too high and the weather is too cold for your boots to keep your feet warm by them selves, turn to these full-coverage gaiters. Insulated with removable closed-cell foam, the Absolute Zero Overboots keep your feet warm so you come home with all of your toes.

- Backcountry.com

Free Shipping. Mountain Hardwear Absolute Zero Overboot (Spring 2009) Avg. Weight: 1 lb. 12 oz.; 794 g. (pair)Usage: High Altitude Mountaineering Fabric: Face: FTX Ultra Lower: Duraguard Laminate: GORE-TEX Features: Closed-cell foam upper inserts and sole Crampon tough Duraguard lower Adjustable, interior boot attachment One-handed, top drawcord cinch FTX Ultra construction Velcro front closure

- Moosejaw

When temperatures drop to the point your boots and gaitors aren't cutting it, pull on the Mountain Hardwear Absolute Zero Overboot. The Overboot delivers the warmth and functionality essential for high altitude expeditions. They are built crampon-tough with a Duraguard lower, and closed-cell foam inserts, and FTX Ultra face fabric have unsurpassed durability and waterproof protection.

- Altrec Outdoors

Mountain Hardwear Absolute Zero Overboot

Discontinued

The Absolute Zero Overboot has been discontinued.

previously retailed for:
$51.93 - $100.00

The Mountain Hardwear Absolute Zero Overboot is not available from the stores we monitor. It was last seen January 15, 2013 at Mountain Gear.

If you're looking for a new overboot, check out the best reviewed current models.