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GiroSwitchblade MIPS Helmet


Item # GIR00DG

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Item # GIR00DG

Switchblade MIPS Helmet

If you've got a weekend in the desert and some rowdy tricks you're itching to try, don't cut corners on your lid. Giro's brand new Switchblade MIPS Helmet encourages you and your DH monster to get rowdy and send it when you're out on slickrock, but it also backs you up with full face coverage, a removable chin guard, and the added protection of MIPS to help you stay safe when you crash hard.

Not every weekend involves staring down do-or-die lines, which is why Giro made the Switchblade's chinbar removable. Snap it off quickly before you head out on a mellower trail ride and enjoy added ventilation from Giro's Wind Tunnel design, included specifically to provide as much airflow as possible on hot, sunny climbs. Giro's tried-and-true Roc Loc Air fit system makes an appearance on the Switchblade as well, but it comes tweaked to DH standards with a bumper protecting the dial from being unintentionally moved when it comes into contact with your pack or body armor.

It's hard to believe that MIPS was a little-known technology just a few years ago, as the thin inner basket has become a ubiquitous option in the world of helmets. Giro doesn't mess around with the Switchblade, including the rotating inner liner to absorb the brain-damaging rotational energy created in certain crashes without compromising the helmet's lightness. Whether you've got the chinbar on or not, the Switchblade exceeds safety standards from all major governing bodies. If you're taking a break from POV coverage on a training ride, swap the visor with the integrated mount for the other visor without it; Giro ships the Switchblade with two separate visors to cut down on the risk of unused mounts adding weight and causing injury in crashes.

  • Sit back and send it with this full-face helmet as backup
  • Removable chinbar adds extra protection on big lines
  • MIPS protection limits brain-damaging forces in some crashes
  • Two visors let you ride with or without a camera mount
  • 20 vents plus Wind Tunnel ventilation keep the air moving
  • Odor-resistant padding keeps things comfortable
Tech SpecsSize
Tech Specs
Shell Material
In-Mold (polycarbonate)
Impact Foam
20 vents
Fit Adjustment
Roc Loc Air DH
yes, P.O.V. Plus
Full Face
yes, removable chinbar
CPSC, EN-1078, ASTM-1952-DH
Recommended Use
Manufacturer Warranty
1 year


Adult Cycling Helmets
Super Fit™
Head Circumference

18.5 - 20in

(47 - 51cm)

20 - 21.75in

(51 - 55cm)

21.75 - 23.25in

(55 - 59cm)

23.25 - 24.75in

(59 - 63cm)

24 - 25.55in

(61 - 65cm)

Head Circumference

21.25 - 24in

(54 - 61cm)

19.75 - 22.5in

(50 - 57cm)

22.75 - 25.5in

(58 - 65cm)

How to Measure:
For best results, use a tape measure to measure around your head where your hat would fit comfortably.

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Fit is key.

    For me, the fit of this helmet is what sealed the deal. Could the ventilation be better? Probably. Could the weight be better? Probably. Does it fit well? Absolutely. Most of the folks buying a helmet like this are looking for big time protection because of the terrain that they ride. Think of this helmet as a downhill works as an all mountain and less as an all mountain helmet that works for downhill.

    Never Out Gunned

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Medium

    Great for enduro racing! I love having the extra protection for rough descents, and the ability to pull off the chin bar for the next climb is a game changer. I love the fit of this helmet, its very comfortable and the mips integration is not obvious or uncomfortable at all. It is a little hard to put the chin bar on while wearing the helmet, just because its hard to line up the slots. I normally just pull it off to put the chin bar on. I have unfortunately crashed hard in this helmet and feel like it did its job well.

    Chin bar collapses on downward impact

    • Familiarity: I've put it through the wringer

    I used to rave about the Giro Switchblades, but after three impacts, I've started to reconsider.

    * The first time on the side of the helmet. It did it's job perfectly, the helmet suffered a dent, but my head was all good. So I was very happy with it and immediately replaced it.

    * Next time, I fell on my face, luckily it was on softish dirt, because the chin bar collapsed. The little black plastic piece that keeps the chin bar in place snapped and the whole thing bent down and came off. Luckily, I was unscathed. At this point I was a little suspicious of the design, but decided to replace it again.

    * Last week I took another spill and landed face first :(. The chin bar collapsed again. This time the little red piece of plastic that holds the chin bar in place stretched and the whole chin bar popped off and hit my neck.

    I won't be replacing the helmet again. I'll be buying something else, probably the Bell Super DH.

    Here's another report of this happening:

    Chin bar collapses on downward impact

    It actually sounds like the helmet performed as its supposed to by saving your face.

    transformers for your melon!!!

    • Familiarity: I've put it through the wringer

    great product, protection and mobility...yeah!!!!!

    This helmet saved my life

    • Familiarity: I've put it through the wringer

    The title is no exaggeration. I took a bad spill that landed me in the hospital for 5 weeks with a C-5 spinal injury, but my brain had no injuries whatsoever. No concussion. Nothing. Absolutely worth every penny spent on it. The helmet did the best job I could ask for.

    Great Helmet

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

    Great helmet, great peace of mind, comfortable, and I love the fact that you can remove and reattach the face guard quickly out on the trail.

    Unanswered Question

    I have a 59 cm head diameter, what size I’d buy L or M?


    • Familiarity: I've used it several times

    so i bought this helmet for a versatile solution to remain cool while climbing but have the protection for downhill and its done exactly that for me. I got a large but i also have dreads so a lot of hair dosent fit in a small helmet :p but im very pleased with the way it fits and breaths. its also super easy to take the chin guard on and off. This helmet is killer and i would recommend it to anyone.

    Great lid

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

    This helmet is pretty awesome. I wanted something that was going to give me a little more protection when I was riding the bike park or doing a shuttle lap where speeds get a little higher. I really like the ability to take the chin bar off for some ventilation and then I can snap it back in place without removing the helmet.

    Great Versatile Helmet

    • Familiarity: I've put it through the wringer

    Comfortable all-around and very reasonable weight for a full face. Used primarily at the bike park but removable chin guard worked great for a little bit of pedaling here and there or when hot out. Saved my face and held up great after a few crashes.

    Durable and Lightweight!

    • Familiarity: I've put it through the wringer

    Purchased this helmet as a gift for my brother and he loves it!:
    "At first, I was a little bit hesitant about this helmet due to its bulky looking appearance. However, upon trying this helmet on, I was surprised how lightweight and sleek it actually was. It is a great all around helmet for use on those downhill days at the resort, or better yet, pop off the front face in a few seconds and use it for uphill/cruising. As far as durability goes… I have already taken a couple of good noggin shots with it. Only a few scratches as expected but no dents or cracks. Overall, this helmet has a fantastic fit and the versatility is what makes it unbeatable for the price."

    Great Helmet

    • Familiarity: I've used it several times

    Mainly use for just down hill but was light enough for all day climbing with plenty of ventilation when climbing and downhill. Love the mount for the GoPro and interchangeable visors. Plenty of room with full size goggles and the adjustability of the straps made it feel really secure to my head. I would recommend if between sizes opt for the larger size.

    Love this hemet

    • Familiarity: I've put it through the wringer

    Great technology idea. i wear the full face for downhill, but when riding cross country i can detach the jaw guard and put it in my pack. easy to attach. good visibility even with the full face. it isn't oppressive like my my motocross helmet that i am dying to pull off. one complaint is that it is a little snug on my cheeks when putting it on, like a motocross helmet. not sure it needs to be that snug.

    Switchblade saved my dome

      I'll admit it does look a bit funny but I don't care because wearing this helmet vs a normal half shell probably saved my life a few weeks ago. I didn't have the chin guard attached and fell pretty hard and hit the side of my head on a rock at about 10-15 mph. Put a dent in the helmet and it cracked the foam but I was fine. If I had a normal half shell on I don't know if I would be writing this. You have one dome, protect it well. Just ordered my second one. Get a good helmet people. Thx BC.

      a lot of helmet

      • Familiarity: I returned this product before using it

      I have had the Bell Super 2r for the past few years and love that i'm able to wear it as a regular skid lid and then add the chin bar for full face protection. I was excited to give the new and improved Switchblade a chance. The thing that may not be clear from photos is that the sides of the helmet COVER YOUR EARS. It's not your traditional mtb helmet when the chin guard is removed. So when I say "a lot of helmet", what I mean is that you still have a LOT of protection when it's disassembled which, for some like myself, will defeat the whole purpose of having a half-and-half helmet. I imagine there are some people who will still love the added over-the-ear protection.

      Very versatile helmet

      • Familiarity: I've put it through the wringer
      • Fit: True to size

      I'm new to mountain biking this year. I've been using this helmet all summer, for both downhill and everyday mountain biking. After a dozen or so big rides, I've decided I would probably prefer to have a lighter helmet for everyday riding. For downhill, this is great! As such, I probably would not opt for the removable chin guard next time and just get two helmets instead. However, it did save me a bit of money to just get the one helmet and I feel more protected with more helmet coverage on my skull. The removable chin guard is super easy to take on and off, no complaints there. However, the Bell Super 3R did feel more secure. I have a relatively large head, which required the XL in this model and also precluded my purchase of the Bell Super 3R because I couldn't find an XL from them in that model. The XL fits well thanks to the adjustable wheel on the back and the strap under the neck. It also fits well with both sunglasses and Smith goggles. The colors are bright and unusual, which I like, but may not be for everyone.

      Very versatile helmet

      Update: I used this helmet all season, which for me ended in September when I was riding Tsunami at Deer Valley and landed a jump poorly and took a hard fall. Thanks to this helmet, I was saved from dealing with head trauma on top of a collarbone surgery. The plastic on the outside of the helmet cracked all the way through along ~2" stretch and will need to be replaced, which I plan to do on the current sale price. FYI, Giro offers a 30% off coupon code to replace broken helmets if you contact their customer service group. Updating my user rating from 4- to 5-stars.

      Update: I used this helmet all season, which for me ended in September when I was riding Tsunami at Deer Valley and landed a jump poorly and took a hard fall. Thanks to this helmet, I was saved from dealing with head trauma on top of a collarbone surgery. The plastic on the outside of the helmet cracked all the way through along ~2" stretch and will need to be replaced, which I plan to do on the current sale price. FYI, Giro offers a 30% off coupon code to replace broken helmets if you contact their customer service group. Updating my user rating from 4- to 5-stars.


        I finally got a full face helmet and so far this seems to be the perfect one! It applies just the right amount of pressure on my cheeks and is easily adjusted, making for a very solid fit. I would have given it 5 stars, but I've found that the removable chin piece isn't very practical. Without it, the helmet is an awkward fit and looks funky. Next time I'll go with a non-detachable and use my normal helmet for trail rides, and only use the full face for downhill rides.

        Works Perfectly!

        • Familiarity: I've used it several times

        This is a comfortable, light weight, breathable full face helmet. If allows a lot of air flow, which is great on a full face helmet. The front is a little tricky to take on and off. I would recommend watching the youtube videos to see how the recommend to do it. It works best to adjust it while you are wearing it. Seems like it would have been a good idea to make it simpler when it is not on. It is nice to know you have a versatile helmet that can do it all. I highly recommend this helmet!

        Great Helmet!

        • Familiarity: I've put it through the wringer

        This is a fantastic option for mountain biking! I got this helmet for my 2 sons who ride aggressively. My oldest son had crashed with the older version of the switchblade and his head was the only part not hurt, he was so excited with his new bike that he started riding before putting on his pads, gloves and quickly launched off a jump and wiped out in the gravel. Thankfully no serious problems just some stitches etc. But the older switchblade worked great and I needed to replace it. He loves this one now even more. The colors are great too. The visor flips up out of the way for goggle storage and that is perfect. Get this helmet...