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100% Waterproof Bestseller

Women's Boulder Summit Waterproof

This fully waterproof boot draws inspiration from the original Boulder Boot, but now combines the rugged outsole of the Outlander to offer a more secure grip.

Restock May 2026. Click on your size below and sign up for a notification to be the first to know!
Regular price €245 EUR
Regular price €245,00 EUR Sale price €245 EUR
Sale
4.8
Rated 4.8 out of 5 stars
765 Reviews
Color:
Rugged Bark
Coal
Size (EU):
Wide Shape WIDEST Natural-Shape Fit
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Ships in 3-7 business days

Ships in 3-7 business days

If you’ve been holding your breath for us to release a Boulder Boot style that can properly tackle the trails, you can go ahead and release that breath. Now take another, and another, because you’ll be huffing and puffing up and over mountains and along stretches of dirt and rock in your spiffy Boulder Summit boots. Rain? Mud? Snow? Sleet? No matter, these boots are fully waterproof and will keep those feet dry despite what Mother Nature throws your way.

The Boulder Summit combines the minimalist features of the Boulder Boot with the outsole of the Outlander. This means these boots offer substantial grip without weighing you down, flexibility as you navigate uneven terrain, and the wide toe box means ample space for your toes to spread out fully. The rubber outsole incorporates 4mm deep lugs and zig-zag grooves for superb traction in even the most slippery situations.

Available in Rugged Bark and Coal - a full-grain, oiled leather, which can be reconditioned overtime to retain its best waterproofing - and Nitro - a fully waterproof Nylon and vegan-friendly option.

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Rugged Bark
https://cdn.shopify.com/s/files/1/0903/3639/5607/files/lemssizechart-eu_7048f88f-030f-44ca-9899-712236af5383.png

We recommend ordering your usual EU size.

If you’re unsure, please use the cm guide above.

Important: the insole length should be slightly longer than your foot — around 1 cm of extra space for natural movement.

For example: If your foot measures 25 cm, choose an insole length of approximately 26 cm.

For more info on sizing click here.

FULL RUBBER OUTSOLE WITH ZIG-ZAG SIPING

This brand new, sticky rubber outsole incorporates 4mm deep lugs for incredible traction on snow, mud, and everywhere in-between! The built in zig-zag grooves (siping) provide additional biting edges to cut into ice/snow and helps ground your feet in slippery situations.

100% WATERPROOF UPPER

With its fully waterproof membrane and gusseted tongue, the Boulder Summit will keep your feet dry and warm, especially after a day on the slopes or slogging through slush on your way to the bar!

ZERO-DROP

Places the forefoot and heel close to the ground correcting posture, aligning your spine, and encouraging mid-foot strike.

WIDE TOE BOX

Unlike traditional footwear that squeeze the toes together, our foot-shaped toe box allows for maximum room giving the toes ultimate freedom to wiggle and spread.

4.8
Rated 4.8 out of 5 stars
Based on 765 reviews
Total 5 star reviews: 672 Total 4 star reviews: 69 Total 3 star reviews: 20 Total 2 star reviews: 4 Total 1 star reviews: 0
97%would recommend this product
Slide 1 selected
765 reviews
  • Rated 5 out of 5 stars
    1 week ago
    Outstanding Performance

    I wear barefoot shoes. I needed some boots for a trip to Scotland. After a lot of research over a wide variety of companies I decided on the Summit Waterproof boot. I even ordered a Vivobarefoot boot so I could feel them side by side. I stuck within the Lems. For 8 days I hiked in the highlands through mud and water and then the hilly city of Edinburgh. I went a total of 51 miles in my Lems throughout the week. I didn’t break them in before and I still didn’t get a single blister. We didn’t get as much rain as anticipated but when there was, my feet were comfortable and dry the whole time. These boots were my best purchase for the trip. I can’t say enough good things about them. I wear a 9.5 in non-barefoot shoes and my feet are about 25.5 in. For most barefoot brands I wear a 10. I ordered a 10 in these and they fit perfect, still plenty of room for toe splay even with wool socks. I highly recommend these boots!

    M
    Molly
    Verified Reviewer
  • Rated 5 out of 5 stars
    1 week ago
    10/10

    I have painful bunions, so I usually treat new shoes like enemies. But these? Absolute champions.

    i wore the Lems Boulder Summit Waterproof all over Japan and walked up to 36,000 steps a day without pain. I only brought this one pair, and they somehow handled snow, miles of walking, and dressing up for dinner. They’re also super spacious, which my bunions greatly appreciate.

    R
    Ray
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Life Changing

    I bought these boots because a friend recommended them.

    Having wide feet and bunions, I have always had foot pain when wearing shoes.

    After purchasing these and several other pairs of Lems, the of health of my feet has transformed

    I'm pain free and my feet have become so strong.

    I will be repurchasing for life.

    Thank you for giving me my quality of life back.

    Erin

    EN
    Erin N.
    Verified Reviewer
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