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  • Lake - MXZ303 Winter Cycling Boot - Wide - Men's - Black
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  • Lake - MXZ303 Winter Cycling Boot - Wide - Men's - Black

Lake MXZ303 Winter Cycling Boot - Wide - Men's

sale $269.99 $299.9510% Off

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    • 39.0/Wide
    • 41.0/Wide
    • 42.0/Wide
    • 43.0/Wide
    • 44.0/Wide
    • 45.0/Wide
    • 46.0/Wide
    • 47.0/Wide
    • 48.0/Wide

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    • Black

    3 Reviews



    While the Lake men's Wide MKZ303 Winter Boots are built with tech-heavy features that line them up more with weather-resistant mountaineering boots than your typical cycling shoes, one of the design choices that we like the most is surprisingly low-tech. The Wide version of Lake's Winter Last that the shoe is built around is an even more cavernous version of the already generous standard model, so the metatarsal area is just about the size of the sprawling winter landscapes of epic Russian novels. This added space allows for unrivaled layering potential that also recommends the boots for use while traversing those landscapes' frigid, unforgiving conditions by fat bike. Sometimes size matters.

    As the boots' impressive exteriors indicate, though, layering ability isn't the only feature protecting your feet from the elements. The upper is Pittards full-grain leather, which is not only incredibly durable and protective, but it will break in for a perfect fit as well. The outsole comes courtesy of Vibram, with a high-grip rubber compound for walking through Zhivago-grade snow drifts.

    Lake also employs Outlast heat reflective technology in the heel and tongue liner. The Outlast inserts retain heat from your feet, releasing it back into the boot when the temperature drops. In other words, they'll keep you warmer for longer. Granted, it shouldn't be an issue, thanks to the 3M Thinsulate insert in the toe box, which blocks wind and helps the insole's Thermosol composite insulation keep your digits warm.

    Getting snow in your shoes can quickly get the better of even the warmest boots, but with an over-ankle neoprene cuff, that won't be a concern. The boots' wind- and moisture-blocking foot and ankle flaps are held tightly by a BOA ratchet and a buckle, respectively, which enable easy fine tuning of your fit without the risk of coming loose mid-ride. As you'd expect, the MKZ303 boots are compatible with standard two-bolt mountain cleats. If you refuse to hang up the bike just because there's a little snow on the ground, or if you're into Tolstoyan bikepacking treks, this could very well be the answer you've been looking for.

    • Item #LKC000Z

    Tech Specs

    Upper Material
    Pittard leather
    Thermosol composite insulated
    fiberglass-injected high-impact nylon
    Vibram Mountain V
    Cleat Compatibility
    2-bolt mountain
    Recommended Use
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Lake MXZ303

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: 39W
    • Height: 5'5"
    • Weight: 130lbs

    I'm a female and wear a size 7.5 sneaker and boot. I ordered a size 39 and it was too tight wear wearing a PhD Smartwool sock. I reordered a size 39 wide and it fits perfectly with a thicker wool sock or the PhD sock. I even ordered the 40 regular to see if I didn't need a wide and the 40 was too big toe to heel. The 39 Wide fits perfectly. These boots feel like slippers they are so comfortable and warm. They do not feel wide or floppy. No need to break them in. I bought them for a fat bike DH race in New Hampshire and the temps never got above 15*. My feet were warm for the first time ever in winter weather! My husband also bought a pair in size 45 and they were also narrow. Exchanged for a 45 wide and he loves them. He is a 10.5 boot/sneaker. I indicated that they are true to size (length wise) but in our case they were just narrow. They are built very well and I would definitely recommend them!

    Comfortable, well made, warm

    • Familiarity: I've used it several times
    • Fit: Runs small

    I've only worn these a few times in dry conditions, with temps in the lower 40s - upper 30s. My feet definitely are warmer than in my regular cleats with shoe covers. The lacing mechanism is well engineered and easy to use. They do run narrow and short. I normally wear a 39 or 40, and have a normal foot width. But I had to order a 41W to get enough toe room. I wear a thin, non-cushioned sock. I'll be trying a little thicker sock as the temps drop. Very comfortable to walk in, too.

    Keeps the feet toasty

      I researched a bunch of different boots before buying these and many of the reviews were saying to size up. I believe they fit true to size after they are broken in. If you do size up you get the added toe room for warmth. However, in time the boots will get pressed out and the boa tightening mech will become ineffective at giving the correct amount of support which will cause your heels to slip. Sizing up will add more material and weight as well. I had to slide my cleats a little towards the inside of my feet because the boots are thicker and I was getting slight crank rub. With winter MTB boots there aren't really that many options out there, these keep my feet warm but I might look into getting gaiters for them.

      Keeps the feet toasty

      Hey Pete, Are you sizing up from another Lake WIDE shoe? I am on the 45.5 WIDEs in the MX 237s, and I find that the 47 wide in the 303s feels tighter in the width. I'm hoping they stretch to fit as the 237s did, but it seems like "stretch" in these shoes is really just over-compressing insulation - meaning perpetually cold feet where they fit tightly (1-2-combo hit of squished insulation and less circulation!)

      Thoughts? I hope it's not just a "too each his own" answer... the arguments you present in the BOA still working seem very valid.