GiroSynthe MIPS Adult Road Cycling Helmet

This is a great helmet, I have the regular Synthe and bought this one because of the MIPS improvement. In the previous model I am almost at the higher limit for the size M, it leaves 3 or 4 clicks of adjustment in the roc loc. The Synthe model has a little bit snugger fit because of the MIPS layer(it leaves 1 or 2 clicks for the roc loc) but for me it feels more comfortable and with a better adjustment. Looks really cool when wearing it, compact size so you don't look like a mushroom, lightweight, well vented and considerably silent at high speeds. My only complain to Giro would be that so far there is no Roc Loc Air replacement for the Mips model.UPDATE: After 3 months owning this beauty, I had a bad crash, broke a couple of ribs and hit my head pretty hard. The helmet broke, but I had no harm in my head at all, this helmet probably saved my life. I'm one month off the saddle for now but I'm getting exactly the same helmet as replacement. I just hope to get a $180 deal as the one I got when I bought the first one instead of the full $269 price LOL. USE YOUR HELMET.

This helmet is comfortable, light weight, and well constructed. Ventilation is excellent, the appearance is stylish and is not too large. I also love the sunglass holding ports, which is the first time that I have had that feature in a helmet, and while not too excited about it before I bought it, I found that it is extremely useful. The helmet is on the pricey side, but I chose to go with it anyway due to the quality of the product, and attention to detail on all the components. I can't speak to its durability from a crash (knock on wood) since I have not had one with this helmet, but Giro is a reputable company that invests in R&D and testing of their products.

This is my second Giro Synthe helmet, but the first MIPS equipped one. I cracked the first non-MIPS helmet when I crashed a couple months ago. Luckily, I did not sustain any head injuries and this was evidenced by a CT Scan. The harness works extremely well both during warm weather and during the cold when wearing a skully. It's also a breeze to adjust the fit with the single dial in the back. The strap is light, holds well, and fits very comfortably around the side of the face and under the chin. Also, the Synthe is aero but has great ventilation, and aesthetically is really cool looking. The Giro Synthe has been nothing short of excellent, and I'm very happy to have purchased it.

This is one of those items where the cost is quite off putting when in the research phase but then once you have used it there is no going back - like a Mac! The differences between this and cheaper Giro helmets are huge (I have the Savant and the Phase). I can't account for its true aero capabilities but there is definitely less buffeting from the wind so that has to count for something! The straps are a big improvement and the RocLoc tensing system continues to be a good system for me. The dedicated storage holes for sunglasses proves useful and holds the glasses a little more securely then when using a normal vent. At this price it would be nice if the helmet came with a storage bag but overall Im very happy with my purchase.

I have been road biking for a couple of years now. My previous helmets were less expensive Giros. I researched scores of helmet brands and found it difficult to decide because there are so many good helmets. I was thinking about the much more expensive Giro Aether when I saw a review from a rider that had experienced both the Synthe and the Aether. He liked the Aether but said he said that nothing is really gained when moving from the Synthe to the Aether. In his Aether review, he recommended the Synthe.I was not very impressed with the looks and colors of many of the expensive helmets. Not even the Giro Aether had the color scheme I wanted. I almost purchased a black one. Then I found this helmet - saw the color scheme and made an immediate purchase.It arrived today. Out of the box, this helmet looks better than in the pictures. It is a work of art. The fit is amazing compared to the cheaper helmets. On my ride, I perceived a more aero feel than the old helmets.This helmet was a great find. Finally, the hunt for a decent helmet is over.

Best fit I've ever had. Matte finish is already wearing off. Glasses holes only keep very specific glasses in place, specifically ones with straight arms, and even then it's hit or miss. Giro offers zero guidance on this, only saying that most any will fit, which is BS. Otherwise I love it, and bought a spare pad set so I can use it for years to come. (Shame on Giro for not selling those directly, or supporting obsolete helmets.)Industry-wide gripe: why not use double D-ring chin straps like notorcycle helmets instead of the plastic crap? Perfect fit every time and virtually unbreakable. Just sayin'.

Bought this same helmet (in black) for my wife at local bike store (a week earlier), but they didn't have my size (M) or the olive/hi-viz color that I liked. This was the most expensive helmet at the bike store, so we said let's try it on just to see what the best feels like before we choose a more value-oriented model. Well the difference was so staggering, compared to the other models available, we ended up buying this one (and a 2nd here on Amazon for me)! The helmet is feather-light and VERY comfortable. And best of all we found out later (since we purchased w/out ever riding w/it) that it has amazing air flow that keeps your head cool. We are casual riders (I have a Priority Continuum Onyx commuter bike) i.e. not long distance riders so at first thought this helmet was overkill, but decided why not be as comfortable as possible so we paid-up a bit (vs our orig budget) and have NO regrets!

Great fit can wear it all day super vents for keeping cool 5*+ helmet.

Very comfortable and while it is a little bulkier than my old Bell helmet - feels more safe. I had originally ordered the M size but found it too tight so returned it no problem and re-ordered the L size which fits great. Was originally concerned that with the black colour and fewer vents that the helmet would wear hotter and so far after two dozen rides not noticing any increase in heat. Product is well made and the headband adjustment works well. Would definitely recommend this product despite being the most expensive helmet I ever purchased.