Alpinestars SMX-6 v2 Boots
- Newly designed boot upper incorporates innovative front, rear bellow and rear calf zones for superior levels of flexibility. The upper is constructed from microfiber for durability and abrasion resistance
- Ergonomic last for forefoot streamlining to enable greater control of the bike’s controls and for superior, wide-ranging foot profile, fit and comfort
- Alpinestars’ innovative TPU lateral ankle brace protection provides a biomechanical support between lateral top calf/shin and ankle and offers improved structural integrity, protection against impact shocks, repeated abrasion resistance and flex support.
- Air vents on the heel counter and shin plate plus breathable mesh inserts (vented version only) improve comfort and reduce fatigue on short and long rides
- High modulus TPU injected shin guard, calf protector, heel counter, shift pad, ankle brace and toe slider for improved shock protection and durability
- Double density ankle protector on medial side layered under the upper offers protective performance in key area
- Integrated, replaceable bi-injected TPU slider features new easy screw fixing concept for quicker and easier replacement
- Innovative instep and Achilles accordion flex zone construction for superior comfort, extension, control and support
- Internal insole with the shank reinforcement integrated for support to the arch area and foot protection
- Medial side entry opening/closure system features elastic-mounted zipper with wide velcro closure for flexibility and secure fit. The aperture opening is large to promote easier entry/exit
- Internal toe box protection is layered under the upper for durability, improved feel and performance
- Breathable textile interior lining features anti-sliding suede reinforcement on heel area help keep foot in position while riding
- New, removable anatomic footbed includes EVA and Lycra for performance, comfort and support
- Alpinestars’ new and exclusive compound rubber sole promotes improved feel and grip, water dispersion and durability
- The SMX-6 V2 Boot is CE certified
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Sizing Information
We found these boots to fit about 1 size larger than the stated size!
You can use the chart below to choose a boot and we think the chart is representative of the US shoe conversion. If you’ve determined your size in past Alpinestars sport boots, you most likely need to size down one size. I’d consider the width of the men’s sizes to be normal to slightly wide (D or E). I’ve always found this style boot easy to fit because the foot has a nice wide toe which is comfortable.
| Euro | Men’s US | Women’s US | Our Men’s US size estimate |
| 36 | 3.5 | 5 | 4.5 |
| 37 | 4 | 6 | 5 |
| 38 | 5 | 7 | 6 |
| 39 | 6 | 8 | 7 |
| 40 | 6.5 | 8.5 | 7.5 |
| 41 | 7.5 | 9 | 8.5 |
| 42 | 8 | 10 | 9 |
| 43 | 9 | 11 | 10 |
| 44 | 9.5 | 11.5 | 10.5 |
| 45 | 10.5 | - | 11.5 |
| 46 | 11.5 | - | 12.5 |
| 47 | 12 | - | 13 |
| 48 | 12.5 | - | 13.5 |
| 49 | 13.5 | - | 14.5 |
| 50 | 14.5 | - | 15.5 |
Our Two Cents
This new SMX-6 v2 boot is largely unchanged as compared to the previous version from 2014. It is a great boot for sport riders and for amateur racing. The boot has the basic racing protective features that will satisfy all but the hard core racers, and the boot is wrapped in a package that is practical for street use.
These boots incorporate a lot of flex zones on the front and back of the ankle, so these boots will break in and give some flexibility for walking. They do have a hinged “stiffener” on the side of the ankle to give support in case of a fall to help prevent you from wrenching your ankle to the side. That stiffener is on the outside of the ankle and doubles for impact protection. Hidden on the inside of the ankle by the main zipper is another impact protector so both sides are covered. You’ll also notice, the sole is low profile and the shape of the boot around the ankle is sort of rounded with a smallish heel base. The rounded shape is to promote sliding in a crash rather than the heel grabbing the pavement. A squared off heel area would be more likely to grab and then creating a wrenching effect. It is sort of the same idea as gloves that have palm sliders…. promote sliding rather than grabbing.
The boots also have a hefty protector for the shin, and the toe and heel areas are well reinforced. Like all other race boots of this type, the boots have an inside zip with a Velcro close cover over the zipper. The inside of the boots is lined with a cushy breathable material that is long wearing.
Consider these boots to be the “can’t go wrong, basic racing boot” in our lineup. They are reasonably priced and with a good size range and color choice. The basic black is a non-vented version and there are three color choices that incorporate some perforated upper material to flow air. Consider those for hot weather use. :: Paul, 03-13-17
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