FEND One Helmet

Size: Small (54 - 56cm)
Color: Matte White
  • Patented Smart-Fold Technology: Folds by 50% to easily store in any bag or backpack. Always accessible, yet never in the way — finally, a helmet that fits your lifestyle.
  • Award-Winning Patented Design: Red Dot Design & Edison Award Winner. Designed and engineered in NYC. 
  • Certified Safety: US CPSC and European EN1078 safety standards for bicycles, skateboards, and e-bikes/scooters under 20mph.
  • Comfortable, Lightweight, & Adjustable: Integrated dial fit system for precise adjustments and additional padding for the perfect fit.
Shipping & Returns

30-day return policy and limited 1-year warranty.

Fit Guide

FEND One Size Fit Guide

  1. Find a Measuring Tool: Use a string, shoelace, or USB cable to wrap around your head just above eyebrows.
  2. Mark & Measure: Mark where string overlaps and measure against a ruler or yardstick.
  3. Choose Your Size: Use the above chart to select your size. If you’re in-between sizes, we recommend sizing up.
Size: Small (54 - 56cm)
Color: Matte White
FEND One Folding - The perfect city helmet FEND One Folding - The perfect city helmet


Lab Tested & Safety Certified


Folds by 50%

FEND's patented Smart-Fold Technology allows the helmet to easily fold and store in any bag or backpack. Always accessible, yet never in the way — finally, a helmet that fits your lifestyle.


Award-Winning Patented Design

Designed and engineered in New York City. Built with a durable ABS shell, ultralight PC, high impact absorbing EPS core, and durable matte-finish. Red Dot Design Award and Edison Award Winner.


Comfortable, Lightweight, & Adjustable

No matter your head size or shape, we have you covered. Using our integrated dial fit system, adjustable straps, and extra pads, we’ve created the perfect fit just for you.

Customer Reviews

Based on 123 reviews
Andrea Sosa
Better than expected

highly recommend.

helmut review

I carry my helmet with my at all times in NYC which gives me the flexibility to use cuticles to go wherever.
It folds so well and so easy to slide into my day bag.
It’s solid helmet and the customer service is amazing.

Andrew Perez
The perfect helmet for a city commuter

I bike around NYC a lot, going to and from work and just around town for events. I spent ages finding. a helmet that didn't look silly and was easy to travel with when not riding. This is 100% the helmet! Easy to fold, easy to pop the lights in and out to charge, and light enough to not add weight to your backpack for storage. I got the helmet in black, but I low key wish I would have got something fun and bright like the green haha. I'm so happy with my purchase!

Excellent helmets

Got 2 of these for myself and my spouse. I am usually XL in hat size, but the M/L size fits me well. These helmets take very little space in the closet (we hang them in the coat closet using the chin strap) and are very well made and comfortable. Don't look bulky either!

FIve Star Plus ! Fantastic idea for a bike helmet. Excellent customer service too.

I opted for the Fend folding helmet with lights. The product I received was far beyond my expectations. It is very well designed and is solidly constructed. It folds easily and fits perfectly in my bike rack bag. At $129, it is a fantastic value. I don't write a lot of reviews, but I felt this product deserves one. Customer service is also fantastic. I had a question on my shipment, and I received a reply within a couple of hours--on a weekend !!! I am not use to such great service in this day and age. Keep it up Fend. Your products rock !