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Description
ALPINESTARS Stella SMX-6 V3 Vented Boots - Black/White - US 9/EU 43 2223425-21-43Dedicated female fit for optimal riding comfort Packed with a host of innovative safety and protective features, the Stella SMX 6 v3 Vented Boots are the ultimate track and street performance riding boots packed with race derived technology and protective materials designed to give riders a crucial performance edge on the track or street Upper been precision engineered to closely conform to the anatomical contours of the foot, offering optimal
- Dedicated female fit for optimal riding comfort
- Packed with a host of innovative safety and protective features, the Stella SMX-6 v3 Vented Boots are the ultimate track and street performance riding boots packed with race-derived technology and protective materials designed to give riders a crucial performance edge on the track or street
- Upper been precision-engineered to closely conform to the anatomical contours of the foot, offering optimal flexibility, improved walking comfort, and breathability
- Every component has been carefully designed with rider performance in mind, including the protection innovations, improved ergonomics, and comfort features
- Upper constructed from an advanced microfiber with a dedicated laser perforated area for breathability, engineered to offer light weight, high-performance protection against abrasion and designed to provide superb levels of flexibility
- Front flex and back flexion zones are constructed with textile over-injected on 3D mesh, with soft Thermoplastic Polyurethane (TPU) for enhanced impact abrasion while also promoting a natural forwards and backwards movement
- An evolution of Alpinestars unique ankle brace protection system provides a biomechanical support and protection between the lateral top calf, the shin and ankle, for superior ankle articulation, as well as providing Achilles and ankle impact protection
- Alpinestars Lace-Lock System is constructed from an advanced polymer resin for a guaranteed quick, precise, and secure closure
- Main upper material is constructed from microfiber with an area that has laser perforations to provide durability, high levels of abrasion resistance, and flexibility, as well as breathability
- Air vents on heel counter and shin plate plus breathable mesh inserts on the back improve comfort and reduce fatigue on short and long rides
- Perforation padding on entire boot, including front and rear bellow, collar, and ankle for added ventilation and breathability, as well as premium rider comfort
- Ergonomic last for forefoot streamlining to enable greater control and improved precision on the bike’s controls
- Ergonomic elastic gaiter in front provides a precise fit in any condition
- front flex and back flex design combines textile and over-injected, soft TPU areas, offering improved impact abrasion and optimal, natural front and back movement of the foot
- Medial side entry opening/closure system features elastic-mounted zipper with wide hook and loop closure
- Streamlined contact surface with the bike for greater control and rider comfort
- Pull flap with dedicated design for increasing pensility and facilitating the hook and loop closure
- Dual compound removable anatomic footbed made in EVA with Lycra on top
- Internal insole with integrated shank reinforcement for support to the arch area and foot protection
- Internal toe box protection is layered under the upper for durability, improved feel, and overall performance
- Sole is constructed from a lightweight rubber compound offering excellent grip on the pedal box
- TPU lateral ankle brace protection provides a biomechanical support and protection between lateral top calf/shin and ankle
- Equipped with TPU shifter zone for superior protection on the lower medial side
- Strategically positioned, race-derived TPU shin plate protector delivers superior impact and abrasion resistance while offering a more compact design, so the boot fits easily under the pants
- Dual density TPU ankle protectors are strategically positioned between the upper on the medial side and the padded lining to provide the strategic protection in key areas
- Replaceable, dual density TPU toe sliders with screw-in assembly provides comprehensive protective coverage around the outer toe area while still being supremely flexible for walking comfort
- New back calf TPU bridge is designed to reinforce the level of protection and support
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
4.6 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Perfect for home or traveling
Color: White
This is my second water floss, product, and by far the best. Yes, the water reservoir is not as large as some of the others, but it is perfectly adequate. Easy to use, has three different settings, that are easy to change. Definitely enough power to get all the food out from between my teeth. I use this when I had braces, and I use it now with my retainer, so that my teeth are always clean. I like the design, and the fact that it doesn’t have a tube to suck the water. The charge lasts for an extended period of time and recharging is very quick. I can go two to three weeks, and it’s still got a good charge to it. Highly recommend.
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Reviewed in the United States on July 23, 2023
★★★★★ 5
Surprisingly Great!
Color: Black
I’m writing this review because I am actually
Overly satisfied with this product. There are many high quality brands that have similar “water flossers” with high price tags. The price on this was relatively inexpensive so I decided to try it knowing Amazon’s great return policy.
I’ve had it for just over a week and I’m borderline addicted to how good my teeth feel after using this along with normal brushing and mouthwash. It’s a legit “just left the dentist feeling” I can say for the price it is a good value and works great.
This comes with a few extra standard heads, a specialized head with small brush for braces and a tongue scraper. I primarily use the standard head which is just a small jet that allows you to shoot the water stream between your teeth. I also have used the tongue scraper just to try it and it’s not bad. Allows you to scrape your tongue while a stream of water cleans and rinses.
Anyone who flosses regularly knows it sucks and can be gross. Let’s face it, you are ripping old food out of your teeth. It’s a necessary evil for a healthy mouth. I used the small plastic floss picks for a while and they do a decent job. Dental hygienists usually argue it’s not the same but I think it’s better than not flossing at all. Now my routine is a quick floss with the floss picks followed by this water flosser - and it’s fantastic.
The unit is well made and has a few different modes. I stick to the standard mode which is a constant jet of water. It’s aggressive and can be intimidating at first so here are some tips I think will help:
1. I use slightly warm water. Cold water blasted at your teeth is not fun. Warm water is a way better experience. The reservoir is easy to fill right from the sink.
2. It will take a couple tries to figure exactly how to use it. If you just hit the power button it will jet water everywhere before you get it in your mouth. My suggestion is put it in your mouth, aim the head between your teeth, close your mouth and then hit the power button. Once it starts you just move it from tooth to tooth between your teeth. Once you get the hang of it it’s great. I do my top teeth, spit out, then do the bottom row and spit out. I follow it up with brushing and mouthwash. Literally the fresh from the dentist feeling.
3. The reservoir is small so it runs out quickly but it’s so easy to refill I wouldn’t call it an issue. If it were larger it would be bulky and the other brands that have a big tank and hose are just too much to deal with. After a week of using I can quickly do all my teeth with one fill. I usually do a second round as well because im addicted.
4. Be careful of turning it on when it’s not in your mouth. The jet is strong and could shoot you in the eye. Not joking.
5. It may be awkward at first but once you get used to doing it you get better at it and it’s much easier. The power button is your friend. I turn it on and off to control the jetting to get more time out of the reservoir and to prevent spraying everywhere.
6. It has a USB charger and it works well. It seems to go almost a week without charging and I use twice a day sometimes - because I’m addicted.
Overall it’s great value for the low price. I’m Not sure how long it will last but I would definitely get another one if this one failed.
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Reviewed in the United States on November 3, 2022
★★★★★ 5
Long-Term Review – Still Works Like New After Months of Daily Use
Color: Black, Color: Black
I purchased the Nicwell Water Dental Flosser in June 2024, and I’ve been using it consistently ever since. I wanted to wait before reviewing so I could speak to durability and battery life — and I’m glad I did.
Performance:
This flosser does a very thorough job cleaning between teeth and along the gumline. It removes debris that traditional string floss sometimes misses and leaves my mouth feeling noticeably fresher. The pressure is strong enough to deep clean but not uncomfortable.
Modes & Usability:
The different modes are useful depending on how sensitive your gums feel. Switching between them is simple, and the controls are straightforward. It’s lightweight and easy to handle, even in the shower.
Battery Life (Very Impressive):
One of the standout features is the battery. Months later, it still holds a charge just like it did when I first bought it. I don’t have to recharge it often, and charging is quick and easy.
Build Quality:
The unit feels solid and well-made. I haven’t experienced leaks, power issues, or performance decline. It still operates like new.
Who It’s Great For:
• Anyone who struggles with traditional floss
• People with sensitive gums
• Those wanting a portable option for travel
• Anyone looking to upgrade their oral hygiene routine
I haven’t had any problems with it, and it’s been consistent since day one. For the price and quality, I think it’s a great investment in daily dental care.
Highly recommend.
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Reviewed in the United States on March 2, 2026
★★★★★ 4
Some drawbacks but overall Good- BUY SEPARATE CHARGING CORD
Color: Black
I have had this for about a week now and here are my takes so far:
You have to order the charging cord separately which is weird, but I was able to get out delivered quickly with Amazon Prime so just know to do this when you order.
Pros: The price!
The water tank is surprisingly large compared to WaterPik and you can definitely use it for longer to clean because of this.
There are lots of different options for water strength and different tips that come with the device
In the first week it has worked fine.
Cons: It is a little too easy to accidentally hit a button and change the water pulse when you are holding it- I have to be very conscious of where my hand is so I don’t get the super strong flow (it is very strong)
The little door where you add water to the tank is at the bottom and seems like out would be easy to knock it off accidentally when open. I did do this once but nothing broke so I was able to snap it back on easily.
I dropped the device about six inches into my sink (all of these devices can be slippery) and the tank got nudged off, but I was able to easily re-attach it so no real problems there.
There is a little detached plug you use to cover the charging connection and it seems like it would be so easy to lose the little thing. 🤞🏼
OVERALL: I would buy again as overall it works well, and the last WaterPik I bought died after 2 weeks (so I don’t trust those anymore). Just be mindful of how you hold it, and watch out for the little tank door and the little rubber charging cover!
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Reviewed in the United States on June 21, 2025
★★★★★ 5
2+ Years of Use and Still Going Strong!
Color: Black
I’ve had this Nicwell Cordless Water Flosser since July 2023, and it has been incredibly reliable. After nearly two years of daily use, I’ve never had any battery issues or pressure problems, which is usually the first thing to go on these portable units.
Why it’s been a great buy:
Dependable Power: The 1400-1800 pulses per minute feel just as strong today as they did on day one. It’s perfect for getting deep between teeth and along the gumline.
Long Battery Life: Even after two years, the rechargeable lithium battery holds a charge for a long time. I don't find myself constantly reaching for the charging cable.
Truly Portable: It’s lightweight and easy to pack for trips, yet it performs like a full-sized countertop model.
4 Versatile Modes: The "Clean" and "Custom" modes are my favorites for a thorough deep clean.
If you want a water flosser that actually lasts more than a few months, this is the one. It’s durable, consistent, and well worth the investment!
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Reviewed in the United States on March 11, 2026