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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
For Your Every Summer RSVP, with Code: SUMMER15
Description
ALPINESTARS SMX-1 R v2 Boots - Black/White - US 5 / EU 38 2224521-12-38A class leading, low cut performance riding boot, the SM 1 R v2 Vented Riding Shoe incorporates a host of technical innovations for improved levels of comfort, fit and durability. Constructed from a lightweight and abrasion resistant microfiber upper with extensive perforations for maximum airflow and breathability, the shoe is also equipped with strategically positioned TPU protectors for abrasion resistance in a key area. The SMX 1 R v2 Vented
- A class-leading, low-cut performance riding boot, the SM-1 R v2 Vented Riding Shoe incorporates a host of technical innovations for improved levels of comfort, fit and durability. Constructed from a lightweight and abrasion-resistant microfiber upper with extensive perforations for maximum airflow and breathability, the shoe is also equipped with strategically positioned TPU protectors for abrasion resistance in a key area. The SMX-1 R v2 Vented Riding Shoe also features a rubber compound sole with superior grip patterning for excellent grip both on and off the bike, while the accordion flex zones give support and control regardless of your riding position.
- Rear flex bellow is equipped with a flex window, which also acts as an air intake for effective ventilation and airflow
- Innovative heel counter support system, which works in conjunction with a strap closure to offer improved fit and support, as well as structural integrity
- Rear of heel counter has been designed with soft TPR insert which works seamlessly with the rear flex zone to allow for improved freedom of ankle movement and comfort on the bike’s controls
- New ergonomic TPU shift pad for enhanced durability in a critical area
- Ergonomic boot shaping for forefoot streamlining which offers wide-ranging foot profile fit and comfort.
- Evolved closure strap is anatomically angled to follow natural shape of rider’s instep
- Instep and Achilles’ accordion flex zones are constructed from lightweight microfiber for optimized levels of durability, comfort and maneuverability on and off the bike
- Front Velcro® closure system offers a quick and secure fit over the instep area while permitting excellent levels of flex
- Alpinestars exclusive compound rubber sole with grip patterning to promote improved feel and grip water dispersion and durability
- Strap features TPR puller for ease of use
- Sole features integrated Alpinestars TPF (Transversal protection Frame) to protect against possible transversal loads
- Aramidic fiber wires ensure the new strap closure system is durable, thin and lightweight Integrated, replaceable bi-injected
- Thermowelded flex grooves to control the flexion and flexibility of the shoe; instep, medial and back
- Double density ankle protector on both sides layered under the upper offers protective performance and abrasion resistance in key area
- Reverse zip closure ensures convenient in and out
- External, high modulus TPU heel counter, lateral ankle and shift pad for improved shock protection and durability.
- TPU forefoot slider features new easy-screw fixing concept for quicker and easier replacement
- Removable anatomic foot-bed includes EVA foam and Lycra® for comfort and support
- Internal toe box protection is layered under the upper for durability, improved feel and performance
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Favorite Slippers Of All Time
Size: 6.5-7.5, Color: Charcoal Faux Fur
ETA 7/2024: So I ended up buying a size 5-6. They fit better around the top and sides of my foot but the sole is a bit small. The 6.5-7.5 sole fits better but the material around the top and sides is roomy so it bunches up. Sigh. I still love these slippers but the fit is frustrating.
I'm obsessed with these slipper boots! They are so cute and comfy.
They look especially good with leggings but I also like that I can tuck other types of pajama pants into them. I'm short and have to fold the waist of most pajama pants so they're not super long on me, but with these boot slippers on I don't have to worry about my pant bottoms dragging on the floor since I can just tuck them in.
I like that they have rubber soles. I love the look of the faux fur but not sure how easy they will be to wash because of it.
I wear a 7 or 7.5 and I got the 6.5-7.5 size. Even with thick socks on they are roomy. Because they are house shoes it doesn't matter much but I probably could've sized down.
I like the way they look so much I might buy a size down and use that pair for wearing outside of my house.
Some other reviews said they have a strong smell but mine did not.
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Reviewed in the United States on January 1, 2024
★★★★★ 4
Cozy warm, overall a good slipper!
I ordered a size Medium and I normally wear a women's size 8 US / 39 EUR and they fit well. According to the box, a Medium in Acorn sizing is Women's 6.5 - 7.5, but I do think these run a little large which is why I went with the Medium vs. Large. The boot part fits well, not too snug or too loose, and it stays up if it has something to adhere to (like over pants), otherwise it would slide down my bare leg. I am super sensitive to scratchiness lol, so I keep the boot part over pants because it is a little scratchy to me. These slippers are nice and cozy, so they keep my feet / ankles warm. The footbed provides a nice cushion and the soles/suede guards are strong but without making you feel like you are wearing actual shoes / boots. I have noticed that the footbed does not have a lot of rebound so there are definitely impressions of my toes inside... which means no one else will want to wear them... haha! I've also noticed the seams seem prominent on the inside, I wish they were a less noticeable, but that is just one of my hangups. So, the only reason I am giving a 4 instead of 5 is the inside is not as soft as I'd like and the seam problem. Regardless, I wear these all the time at home (which is where most of us all are right now) and I am happy with them overall. Oh, and I got the Buffalo Check pattern and it's super cute and fun!
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Reviewed in the United States on December 5, 2020
★★★★★ 5
Soft, Warm and Cozy
I have no idea how these stay up, probably magic. I'm tall so it's challenging to find boot style slippers that are long enough. If support or thick soles aren't an issue, these are the best I've ever found! My ankles and calves have never BEEN so warm; these are my go-to's in the evening. They're easier to walk in with socks but, without, they're floppy and loose. I'd hesitate to size down because it's more the lack of structure in the foot, not length. They wash well (air dry); still soft, warm and cozy. Inserts could probably be added to help with support. I tried them because I found them at a fantastic sale price but I'm buying another pair now, for winter. I'm a slipper person and I definitely notice the quality of materials in Acorns, when I compare them with other slippers.
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Reviewed in the United States on July 19, 2024
★★★★★ 5
My year round footwear
Size: 6.5-7.5, Color: Sunset Cable Knit
I literally LIVE in these "slippers". Inside, summer, winter, outside when I can. I have hardwood floors, so even summertime, they protect my feet. They give me enough cush, but not like structured slippers that feel more like shoes. I go through about 2-3 a year, but well worth it.
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Reviewed in the United States on March 16, 2026
★★★★★ 3
Weird sizing
Size: 5-6, Color: Charcoal
Weird sizing/ fit! It says that they run large in length, so I got one group-size down (5-6). (The sizes are in ranges rather than specific individual shoe size numbers). I liked the concept of the suede reinforced toe & heel for longevity. My heel and toes cleared the length/width comfortably/well and the overall width was more than adequate, yet I found them to be rigid-stiff- tight (to the point of cutting off circulation) specifically in the toe. Ok, I knew that was a possibility BUT……while the toe area was tight the ankle and calf were HUGE and would not stay up unless I wore over pants, defeating the purpose of a slipper-sock. The inside cushioning was soft and comfortable. When I walked, my heel would slip out over the sued area, into the wool sock parentheses, making it awkward to walk. Returning…No point in changing sixes, as if I get a larger foot size, the tow may fit better, but the ankle will be beyond too big. Sigh. Unfortunate, as the concept is sound….the manufacturing/sizing is bizarre. BTW : I have normal width feet (not wide or narrow) and my ankles and calves are on the thinner side. The fit may be better suited to people with wider ankles/calves????
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Reviewed in the United States on January 30, 2026