Purple Haze Overboot

Purple Haze Overboot

Forty Below Ltd.


A favorite insulated boot cover choice for use on Denali, Himalayas, and Polar expeditions. Patterned to fit double plastic mountaineering boots. It is a very unique overboot in that it can stretch to fit easily over a wide range of double shelled mountaineering boots. Made in The USA!

Sizing is based on Boot Sole Length (BSL): Measure the complete length of your boot sole from toe to heel with a ruler. 

Extra Small: 25.5 - 29.0 cm
Small: 29.0 - 31.0 cm
Medium: 30.5 - 33.0 cm
Large: 33.0 - 35.0 cm
Extra Large: 34.0 - 38.0 cm



  • Puffy

    Down Fill-Weight vs. Down Fill-Power: Why the Latter Doesn’t Matter

    How exactly can you shop for a down jacket…and be confident it’s going to be warm enough? Here, we break down one aspect of down jacket selection. Alternatively, check out the insulation we offer for men and women, and email us with your questions. How much down is in this jacket? The key question to […]

  • Boots for Mount Rainier: Singles or Doubles?

    Easily the most common question we are asked is, “What kind of boots will I wear on my Rainier climb?” Here, we break down how we decide. Two Boot Types We use two main types of boots in Washington’s Cascades Range, which includes Mount Rainier and Mount Baker among other peaks: double boots and single […]

  • Bigr

    The Notebook: When Should I Climb Rainier?

    Alpine Ascents climbs Mount Rainier from May through September. We are often asked which dates to choose, so here we break down the merits of each month. Mount Rainier’s Climbing Season(s) Mount Rainier can be climbed year-round. For climbers willing to adventure, even the more challenging shoulder seasons can provide interesting climbing or skiing. A […]

Partners & Accreditations

Alpine Ascents International is an authorized mountain guide service of Denali National Park and Preserve and Mount Rainier National Park.
© Copyright 2019 All Rights Reserved. Alpine Ascents International