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Magnum Sidewinder HPi

Sidewinder HPi boots from Magnum Boots are a special operations/tactical boot designed specifically for mountainous terrain. The Sidewinder HPi, like all Magnum boots, was tested and by special forces operators around the world, so when I was looking for a pair of rugged, hard use boots, I felt pretty confident that the Sidewinder HPi would work for me.

Features and Technology

The Sidewinder HPi boots have many great features, several of which are detailed below. For a full listing, be sure to check out Magnum’s website.


The Sidewinder HPi is currently available in either Desert Tan or MultiCam, mine being the MultiCam version. The MultiCam pattern is extremely popular, and Magnum’s implementation is just plain awesome.

Every inch of the boot, from the outsole molding to the lace eyelets to the Magnum logo, is MultiCam. To my knowledge, there aren’t many boot manufacturers even attempting a full MultiCam boot, and of the ones that are, none come anywhere close to Magnum’s quality.


The upper is the outer part of the boot that covers the top of your foot. The upper on the Sidewinder HPi is made with 2.2mm of suede with a 1200 denier nylon panel for breathability. The lace eyelets, in addition to being MultiCam, will not shine or glint if they are scratched, which is a nice touch. I also really appreciate the locking cleat, which allows you get a good ankle fit.

Outsole (Sole)

The outsole is the rubber part of the bottom of the boot that grips the ground, also called the sole. The outsole on the Sidewinder HPi is the very excellent Vibram outsole, and is the hardest durometer Vibram offers.

I’ve had boots with Vibram outsoles over the years and have always been happy with their performance and durability. And again, the Sidewinder HPi outsole is molded in MultiCam and it looks great.


The midsole is the part of a boot that rests on top of the outsole and is connected to the upper, and is a critical part of any boot, especially hard use boots. In my experience, for hard use boots you want a stiff midsole, and the Sidewinder HPi delivers. The Sidewinder HPi midsole is made from dual-density polyurethane that prevents the midsole from squishing in heat, and provides excellent strength and support.

Insole (Footbed)

The insole, also called the footbed, is the foam or rubber piece that sits on top of the midsole and touches the bottom of the foot. The insole is often removable, as it is one of the most important things that will drive comfort. The Sidewinder HPi features an OrthoLite insole that is surprisingly comfortable. Typically I replace the insole of my boots, but that is not needed with the Sidewinder HPi.

Tongue and Tongue Gusset

The tongue is of course the flap of fabric and foam padding that covers the top of the boot. The tongue gusset is the layer of fabric connecting the sides of the tongue to the upper. The tongue on the Sidewinder HPi is thick, very comfortable and reasonably breathable. The Sidewinder HPi tongue gusset goes up fairly high, which is important as this is where the waterproof level will stop.


The ion-mark technology in the Sidewinder HPi boots is pretty cool stuff. Essentially, the ion-mask is a protective surface enhancement that provides a waterproof, chemical and pathogen resistant barrier at the molecular level, while still remaining breathable.

One of my requirements in a hard use boot is that they be waterproof. I’ve had good luck with GORE-TEX over the years (which is a membrane), so I was curious to test out the ion-mask technology in the Sidewinder HPi boots. According to Magnum, the Sidewinder is not a completely waterproof boot, rather it is a water resistant boot.

To test just how waterproof the boots are, I walked in water on the edge of a large pond for about 20 minutes. I know, my test protocol isn’t exactly real world, but it works! My Sidewinder HPi boots worked great, and my feet remained dry. Had the water been deep enough to come over the upper of the boot, or had it been prolonged like in snow, my feet would have definitely gotten wet.

The other benefit of the ion-mask is that it makes the boots easier to clean. I must confess that normally I don’t care if my boots get a little dirty, as I think mud stains add a little character. But caking mud all over the boots and covering the MultiCam finish sort of defeats the purpose of getting MultiCam boots in the first place, so I’ve changed my dirty ways. Cleaning is easy, simply spray them off with a hose. I haven’t had to do anything else to them, and honestly they still look brand new.

Fit and Comfort

I typically wear a 12 medium in boots, and the Sidewinder HPi fit was spot on for me. I had no problems with blisters, and the break in period was very short.

As I’ve already hinted, these boots are ridiculously comfortable, especially considering that they are hard use boots. I expected them to be much stiffer than they are, and honestly they are comfortable enough to just wear everyday. The boots weigh in at 28.8oz.

Available Sizes

  • Men’s Medium (D): 7-12, 13, 14, 15
  • Men’s Wide (EEE): 8-12, 13, 14, 15

Quality and Value

The quality level of the Sidewinder HPi boots is outstanding. Looking inside and out of the boot, the materials, stitching and seams are all top quality. To my knowledge, they are the best, and maybe only, true MultiCam boot on the market today. The durability so far has been outstanding, they still look brand new. Given these factors and the features already discussed, the Sidewinder HPi is a great value.

One thing you may not know is that you pay a premium for an authentic Crye Precision MultiCam patterned product. So if you want the Sidewinder HPi quality at a lower price, and you can live without MultiCam, consider the Desert Tan option.

Whichever color you choose, you can either buy direct from Magnum Boots or go through one of their dealers like Botach Tactical, who, at the time of writing, was selling the Desert Tan option for under $100. That’s amazing value.

Wrapping Up

I couldn’t be happier with my Sidewinder HPi boots. I love them so much, I’m considering getting another pair in Desert Tan, or checking out another model like the Spider 8.1 or Spider 5.1. This was my first experience with the Magnum brand, and needless to say it was very positive and won’t be my last. I’m looking forward to testing more Magnum products in the future.

Do you have Magnum boots or apparel? Let me know your thoughts below!

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22 Responses to Magnum Sidewinder HPi

  1. Rick Saxby March 5, 2012 at 7:11 pm #

    I’ve been looking for another pair of boots. I thinks I’ve just found em! ;^)

    • Brandon March 5, 2012 at 7:18 pm #

      You’ll love them!

  2. TK March 6, 2012 at 6:23 am #

    Man those look awesome. I was looking at the Oakley MultiCam boots, but not anymore…thanks!

  3. Amy W. March 6, 2012 at 11:49 am #

    Hmmm, does it come in women’s sizes?

    • Brandon March 6, 2012 at 11:53 am #

      Hi Amy – doesn’t look like it, but you could take a look at the Spider 8.0, which is similar. I didn’t see a MultiCam option though.

    • Magnum Boots USA March 6, 2012 at 12:06 pm #

      @Brandon, thanks for the great review! We appreciate your feedback. @Amy, we do not have a women’s version for this boot at this time. If you’re a size 8 or higher, you might be able to fit into the men’s version.

  4. James March 18, 2012 at 1:23 pm #

    That’s a sick pair of boots. I’ve had Magnum boots for years and they’ve always treated me right. Still look good and still comfortable. Nice review, might be time to upgrade.

  5. Jon May 2, 2012 at 11:19 pm #

    I have had these boots since September and the lacing system is horrendous. As others have noted, it is time consuming to put on and take off these boots since there is no speed lace system. Furthermore, if you are military and have to tuck your laces, you will have to double tie them so they don’t work themselves out and than tuck that giant wad of laces in your boot. This wad eventually becomes irritating and occasionally works its way out requiring constant re-tucks. Outside of this they do perform as advertised. They are comfortable, breathable, water and dirt resistant. Thus far as I have road marched in them, jumped and in about a week will be doing some repelling operations in them. If they fix the lacing issues these would be recommendable until than buyer beware.

    • Brandon May 3, 2012 at 7:59 am #

      Thanks for the feedback Jon. Nope, no speed lacing system, but I don’t think it’s horrendous. I’m wondering if the boots have changed between the time your purchased and when I got mine?

      • Jon May 3, 2012 at 11:12 pm #

        Nope, they have not changed; the lacing problem has existed from the first day of ownership. I needed a good pair of boots and I tried on at least 9 pairs from different manufactures before settling on these due to fit, form and perceived quality. The day after I brought them I went on a 6 mile road march and found myself retying my boots 1/4 mile into the ruck. The laces kept working themselves out so I double tied them. Then the laces kept working their way out from being tucked in the boots. I tried tying it around my ankle and still had issues. I have been in the military for 19 years and never felt so frustrated with a pair of boots but I was over $100 in and couldn’t return them so had to live with them. If someone proves that what I am saying is not true I will BUY you whatever boots you want. I offer this to show how serious I am about my assessment.

        • Brandon May 4, 2012 at 6:20 am #

          Sorry I wasn’t more clear – I meant I wonder if Magnum has changed the boots? For example, do yours have a locking cleat? I’ve hiked 5 miles in mine without the laces coming untied.

          I will email you, I think I might be able to help.

          • Jon June 17, 2012 at 11:10 am #

            Since my last post, I have changed my laces to Military Specification # VL61 Type 3 Class, 100% Nylon boot laces and I must say what a difference. While not perfect it is much better than the OEM laces. My latest adventure took me up Mount Rainier to Camp Muir and instead of winter or mountain boots I opted to test out the Sidewinder HPI; in hindsight this was not a good idea. About a quarter of a mile into the hike I could feel water infiltrating into the boot where the sole meets the leather. At about 1 mile the water began to noticeably soak my socks; by 2.5 miles my boot was completely compromised by water and the boot began absorbing water adding a few pounds of water weight by mile four. I completed the round trip and when I got to the paved parking lot at Paradise; water was squishing with every step and air bubbles were coming out at the seams of the sole. This boot is not recommended for swamp, tropical, rain-forest, or winter conditions. The claim of hydrophobic materials is suspect after this experience. I have some dessert trips planned for the future and will provide feedback on that experience.

          • Brandon June 17, 2012 at 12:01 pm #

            Thanks for the feedback Jon. They definitely aren’t waterproof. I have had pretty good luck with the water resistance though, but in Texas (mostly dry) conditions. I’ll look for your desert feedback!

  6. dman May 5, 2012 at 9:15 pm #

    My question is, how wide is Magnum’s wide rating? They rate is as a 3E but many boots in 4E aren’t even wide enough for me.

    I’m 8.5 US and I’m afraid even 8.5 wide in thee boots won’t be enough.
    I hesitate in ordering 9.0 wide cause then it’ll be compromising the length of the boot. Which means my arches will start hurting because of the excessive length.


  7. Charles October 14, 2012 at 5:42 am #

    Wonderfully comfortable and supportive boot. Unfortunately two of the lacing grommets have become detached and I am returning the boots to Botach for a refund. Sorry, no more Chinese slave labor racing through a boot to meet production goals for me; I will be upgrading to a pair of Danner TFXs.

    • Brandon October 14, 2012 at 7:34 am #

      Cool let me know how you like them.

  8. WilliamA February 13, 2013 at 11:02 pm #

    Just bought a pair from Sierra Trading Post ( for $ 71.20 with free shipping! They apparently bought up a boatload of these & are passing the savings along. You have to be patient to get the best price there as their discount deals change almost daily. Sign up for their email alerts to get the best prices & if you have an Android phone use the store app to order the boots & get free shipping! Beautiful boot & matches the rest of my MultiCam gear perfectly. Extremely comfortable …. thinking about getting another pair or two & putting them up for future use.

    • Brandon February 14, 2013 at 5:56 am #

      Thanks. Magnum actually discontinued this model so there should be some deals out there for a while.

      • Larry February 26, 2014 at 4:35 pm #

        Where’s the deals? im trying to find a size 10 in this boot.

        • Brandon February 26, 2014 at 4:38 pm #

          Haven’t seen any for a few months…

          • William A February 27, 2014 at 2:49 am #

            The supply of these is rapidly drying up as Magnum quit producing them over a year ago. Sierra Trading Post had a huge supply but they’ve completely sold out ….. I paid $71.20 Last January 31 for a pair there & kick myself for not buying a second pair when I had the chance.

            A quick search of the Internet showed only an odd pair here & there but nothing close to a Size 10. Extreme Outfitters had one pair of size 8 left & a seller on Amazon had a pair of size 15. A search of eBay showed 2 sellers offering them in “all” sizes but a closer look showed one had size 8.5 & another from the England had UK size 12 left & they were $176.07 w shipping.

            You may be better off going ahead & buying a pair of Danner MultiCam boots. Those are about 90+% MultiCam and are readily available but running around $180/pair most places I checked. Sorry for the bad news … I’d keep checking Amazon Store Fronts & eBay. Maybe you’ll get lucky & if blunder across a pair of 11.5’s or 12’s Medium width give me a shout at