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Diadora Polaris 2 Shoes

Sale $79.58 $198.95 60% off

Item # DIA0043

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  • Black/White/Silver, 40.0 ($79.58)
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Item # DIA0043

Bring on the cold.

When the arctic temperatures come knocking at your door, you can rest assured that you're prepared with Diadora's Polaris 2 Shoes. They're built with the same technical features found throughout Diadora's high-end mountain specific range, but they've been beefed up for cold-weather riding protection. Welcome the cold with open arms this season, knowing that your feet are going to remain toasty on the inside with your Polaris 2 Shoes.

Diadora built the Polaris 2 Shoes around its Regular Plus last. This last shape forms precisely to your foot, combining just the right amount of arch support with forefoot and midfoot hold, but provides a slightly larger toe box than the Race Shape last. Additionally, this design lends itself to securing heel retention as well. This comfortable cradle on the foot is achieved using Diadora's Suprell-Tech and Cordura Cage design. Underneath this durable outer layer, Diadora lined the Polaris with a waterproof and breathable Diatex membrane and thermal padding. Now you can truly say goodbye to cold feet when the mercury drops.

Essentially, this construction was designed to not only insulate your feet while riding, but also support pedaling motions with its ultra-stable composition. At the heel cup, Diadora designed the Polaris 2 to perfectly contain the rider's foot in its seat by armoring the delicate Achilles tendon with a two-part composition. For structural rigidity, the pre-molded thermoplastic polyurethane heel cup uses a firm composite around the back, with softer and more flexible plastics along the sides.

The closure system incorporates three separate straps that each performs specific retention functions. Across the forefoot, Diadora added its V-Fit hook-and-loop strap that allows you to easily control the volume over the forefoot. Moving up from that is the dual-ring 'Double Speedlace' strap. This is also a hook-and-loop strap, but you receive two options for customizable midfoot retention. If your feet are narrow and you have a low arch, use the second ring. Do you have wide feet with a high instep? Take the first ring. In either case, you'll be able to get a supportive and comfortable fit that matches your individual foot shape. Finally, a smooth-stretching top strap secures the upper foot and ankle. The combination of these three straps provides you with the ultimate customizable retention and support.

Diadora chose to mate the Polaris 2 upper to its Mountain sole. This nylon and glass composite platform keeps stack height and weight to a minimum, while maintaining a high level of rigidity for a direct transmission of power to the pedals. The outsole features a dual-density polyurethane Duratech tread that's actually been shaped in mimic of crampons. This sole also adopts Diadora's Multiped, to improve stability and facilitate clipping and unclipping from mountain pedals. Ultimately, this combination of shape and materials creates a tread that's durable, and just as importantly, effectively sheds mud, ice, and snow.

The Diadora Polaris 2 Shoes are available in even sizes ranging from 38.0 to 48.0 and in the color Black/silver.

Tech Specs

Upper Material:
[upper] Suprell, [upper] Cordura
hook and loop straps
removable EVA
nylon reinforced with fiberglass, Duratech rubber
Cleat Compatibility:
2-hole MTB
Recommended Use:
mountain biking, fat biking
Manufacturer Warranty:
1 year

Size chart


Cycling Footwear
EUUS MenUS Women
36 4 5.5
37 5 6.25
38 5.5 7
38.5 5.75 7.5
39 6 8
39.5 6.5 8.25
40 7 8.5
40.5 7.5 9
41 8 9.5
41.5 8.25 9.75
42 8.5 10
42.5 9 10.5
43 9.5 11
43.5 9.75  
44 10  
44.5 10.5  
45 11  
45.5 11.5  
46 12  

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Great cold weather clipless mtn shoe

    Rode all last winter on these in the snow on my mtb and into spring when still cold. Don't forget to put the little plates on under your cleats if using shimano cleats- see photo. Looking forward to more snow riding next year.

    Great cold weather clipless mtn shoe

    Not a real winter shoe

    • Familiarity: I've put it through the wringer
    • Fit: Runs small

    After getting a fatbike last winter, I realized the main weak spot in my cold weather riding gear was my feet. I decided to order these instead of waiting for a much more expensive pair of 45NRTH W�LVHAMMER boots. After using these this winter, I can say these will not cut it for riding in the winters we have had the past couple of years in Michigan. I ordered a size up for me, to make room for an extra layer of socks, and even with the extra layer and chemical foot warmers, these shoes do not keep your feet warm when the temperature is under 30 degrees. And if you have to stand in the snow at all say, while a buddy fixes something on his bike, you may as well head to the car after that. The cold comes right through the bottom of these. Having said all that, they are not a bad waterproof shoe for weather between 35-45 degrees. I wore them on a 40 mile mudfest on a 36 degree day and they kept my feet warm and dry. So they are really more of a late fall, early spring shoe.

    Unanswered Question

    RE: Diadora Polaris 2 Shoes

    I now wear a 43 Specialized for commuting with midweight wool and neoprene covers.

    Was too cold as temp went to 0dF this morning. These look great. Will order 45 on sale hoping to fit at least the midweight wool and perhaps even thicker socks.

    Question: Will "2 Hole MTB" fit my SPD cleats (old- for Shimano 747 pedals)?

    Great for the money

    • Familiarity: I've used it several times
    • Fit: True to size

    Used it several times and enjoyed every ride. Kept me warm on cold days and dry in wet ones. Got it on sale for $90.

    Avg. ride time: 3h 55m per week
    • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

    One ride down & they're great for the $

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: Runs small

    They're pretty good. They're not as techy as the LG or Sidi, or as truck as the Lake shoes, but these are great cold weather shoes. I rode when it was 33 degress and my feet were comfortable. Way better than covers.

    Warmer feet = happy feet

    • Familiarity: I've used it several times

    These are the first winter cycling shoes I've owned and should not have waited this long to get a pair. So I cannot compare them to other winter shoes, but I can say they are much warmer than my regular shoes. I always use shoe covers with them for extra warmth, and when the temps are below freezing I sometimes use foot warmers. Size seems to be right.

    Great for the price. Only one ring.

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size

    Can't try these yet but first impressions - they fit similarly to Sidi sizing. I wear the same size 39 in a Dominator and both fit a med thick sock.

    I am confused by the "dual-ring 'Double Speedlace' strap" as there is only one ring over the midfoot/instep. Fortunately, there seems to be enough space for my very high instep.

    All I can say is: they run small

    • Familiarity: I returned this product before using it
    • Fit: Runs small

    I needed a pair of warmer shoes so I could ride this winter. I usually wear a size 47, so I ordered a 48 in these, so I'd presumably have a little extra room for heavier socks. When I got these boots, I was surprised that I could barely get my foot in wearing just a medium-weight cotton sock! They felt like size 46... very disappointing. They seemed like a decent shoe- especially for the $95 price that I bought them at-- but I ended up getting a pair of Lake MXZ 303, which was a much nicer boot with a better fit (albeit more than 2x the $95 price). Still, if they have this boot in two sizes larger than you usually wear, you might give it a shot (or consider going 3 sizes bigger, since they do run very small)... but at the current $195 price, I would say go with the Lakes.

    Excellent Value!

    • Familiarity: I've used it several times

    I purchased these through Competitive Cyclist about a month ago for $95, which is quite a bargain considering that the other winter shoes I was looking at were around $200 or so a pair. At the advice of others, I went a couple of sizes higher than normal to leave room for thick socks. I normally wear a 10.5, so got the size 12. I was worried that I would be swimming in them, but even with thin socks they seem to fit just fine. I added some cold-weather insoles to the existing ones, which may have helped. My morning commutes in the winter are typically a little above freezing, and these things have been keeping my feet warm without the use of booties. I suspect they would be fine slightly below freezing with a couple of pairs of socks, but they wouldn't be my first choice for extreme cold. I haven't tried them in the rain (we are in a drought right now), but I am having a hard time getting my tights to overlap the boot cuffs, which is going to be a problem. The shoe also uses a waterproof membrane vs. a totally waterproof outside, so it's probably less than optimal in driving rain. Nice stiff pedaling platform without feeling like you are walking in a pair of roadie shoes when the need arises. Overall, a great value if you are looking for an inexpensive cold-weather shoe.

    great shoe for the price!!!

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

    If You looking for a decent cold weather MTB shoes these won't disappoint You... It took about 2 hours for my toes to get cold in about 10 degree weather.

    Had to order one size bigger after receiving my usual 41. It was hard to get into the shoe. 42 work perfect. If You don't want to spend a lot of $$$ these shoes are the way to go!!!

    great shoe for the price!!!
    Avg. ride time: 3h 42m per week
    • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

    Wife is happy

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size

    These kept my wife's feet dry and warm on her last ride at 30* with multiple stream crossings, which kept her happy :) They also fit true to her Sidi shoe size, so perhaps in the smaller sizes (she wears a 40) the sizing is true, unlike for the other reviewer with the larger feet.

    Avg. ride time: 28h 2m per week
    • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

    Decent boot great sole

    • Familiarity: I've used it several times

    I just bought these boots because they were on sale and very reasonable. I have Lake MXZ302 and LG Glacier RD Road shoe as well. with two rides in the 20-30 degree range with winds at 15+ mph I wore the Diadora Boots with ski socks, Mavic Inferno Socks and then Pearl Izumi MTB Elite Barrier Shoe Covers and my toes did not go cold or numb. These rides were both over three plus hours and over 60 miles each day. They are much warmer than the LG Glaciers but not as warm as the Lake MZX 302. For the deal Competitive Cyclist had on them they were a good deal. I think the soles are very good like walking in a boot. They are not the stiffest sole but do well and most likely you will not notice any flex at all. I use speedplay frogs with them and they are a great combo for biking in the winter especially the cold, ice and rain. One of my first rides in them was in the pouring rain right around frezzing and they stayed dry as long as your pants cover the top of the boot. I ordered a size 48 and normally take a size 46 in Sidis (snug) and 46 in Specialized as well. I am in a size 47 in the Lakes which are too snug with more than two pairs of socks however the Diadoras in a size 48 have more room and width for at least three pairs of socks. The boots are constructed well the tongue material is a little light but they perform well. The cleat doesn't make the sole of the shoe cold so they are insulated well. I will say that the Lake boots are still the best and warmest boots I have but I would not be afraid to use these on severely cold days but if I had to choose I must be honest I will wear the Lake MZX 302 first.

    Decent boot great sole

    They run small

    • Familiarity: I returned this product before using it
    • Fit: Runs small

    I received these boots the other day and just wanted to let everyone know that they definitely run small. I wear both size 46 and 47 in sports boots (cross country ski boots and bike shoes), so I ordered these in 47, especially since the backcountry rep said winter boots tended to run large. However...the 47 was uncomfortably tight on my feet with just a medium-lightweight cotton sock. I'll have to re-order in 48 and maybe 49 too, just to be safe. So these boots run small, for sure!

    I gave it a 3 rating, just because I had to give it something. They look like decent boots, but I haven't ridden them yet.