
FREE shipping to
The Nutcase Street collection combines the industry leading safety feature MIPS with all new Nutcase inspiring designs. Featuring an improved retention system to provide a secure, comfortable fit and 2 times the reflectivity for visibility on the road. 11 redesigned air vents increase the airflow to keep your brain cool and stylish designs to keep you looking even cooler.
A: I went to google, no big deal. MIPS (Multi-Directional Impact Protection System) aims to reduce rotational head acceleration caused by an oblique impact in order to further improve protection from rotational traumatic brain injury. So basically, MIPS is oriented towards reducing the rotation of your head by enabling sliding between the helmet and the head during any given impact.
A: This is actually a good question... I ordered this Medium based on the sizing chart, but it sure seems more like it would fit a child's head. But, I think it is SUPPOSED to sit an adult head.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

The Nutcase Street collection combines the industry leading safety feature MIPS with all new Nutcase inspiring designs. Featuring an improved retention system to provide a secure, comfortable fit and 2 times the reflectivity for visibility on the road. 11 redesigned air vents increase the airflow to keep your brain cool and stylish designs to keep you looking even cooler.

Ride smarter and safer with the LIVALL BH51M NSO, featuring Sound by JBL for rich bass, crisp mid-treble, and crystal-clear calls, all while maintaining situational awareness through open-ear speakers. Fasten effortlessly with the FIDLOCK magnetic buckle and enjoy auto on/off functionality that activates within seconds of wearing. With up to 12 hours of battery life and performance down to -20°C, this helmet is built for endurance. Equipped with 53 LED lights, it offers smart lighting, brake warnings, turn signals, and adaptive brightness. Certified to CPSC 1203, EN 1078, and AS/NZS 2063 standards, it also features advanced Fall Detection & SOS Alert, anti-loss alarm, and hands-free controls via handlebar remote. Stay connected, protected, and in control wherever the road takes you.

The LIVALL C21 Smart Helmet offers advanced safety and smart features. It includes smart lighting with three lighting modes, a brake warning light, and automatic light sensing, along with a battery status upon startup. The helmet is equipped with patented fall detection and SOS alerts, sending emergency messages and precise location to preset contacts when a fall is detected. Additionally, it features an automatic on/off function for user convenience. The LIVALL C21 meets the NTA 8776 e-bike helmet safety standard, as well as the CPSC 1203 (USA) and EN 1078 (EU) bike helmet safety standards, making it suitable for riding up to 28 MPH on bicycles, e-bikes, scooters, e-scooters and skate boards.

The dirt is calling, and the Bell Soquel is your answer to style, increased protection and comfort while hitting the trails. Its all-mountain shape offers extended coverage and in-mold construction keeps it lightweight and well ventilated, so you can enjoy the bike ride no matter where the trail may take you. This helmet was designed with MIPS, which can redirect impact energy to provide more protection in certain impacts.
| Pros for Nutcase - Street Bike Helmet with MIPS - Medium - Onyx Solid Satin | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Weight, Fit, Lighting, Safety Features | Fit, Weight, Comfort |