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  • Bern - Union MIPS Helmet - Matte Grey
Bern - Union MIPS Helmet

Bern Union MIPS Helmet

39% Off
$67.02 $109.99


Tech Specs

Impact Foam:
21 vents
Fit Adjustment:
360-degree boa
yes, removable
CPSC, EN1078
Claimed Weight:
Recommended Use:
mountain biking
Manufacturer Warranty:
1 year

Head's up!

Ride from the farmer's market to your favorite coffee shop in the stylish and highly protective Bern Union MIPS Helmet. Using Bern's innovative Zipmold+ construction, the Union brings you a higher strength-to-weight ratio than traditional ABS without sacrificing an ounce of safety, while the moisture-control liner does its part to pull sweat away from your dome on hotter days. Then, MIPS technology (Multi-directional Impact Protection System) uses a strategically-anchored liner on the inside of the helmet that's designed to move independently of the helmet shell to effectively redirect impacts and reduce rotational forces in the case of a crash. Plus, a 360-degree boa closure allows you to find just the right fit at the twist of a dial, and 21 vents throughout this lid protector ensure that the cool air continues to flow on hot summer rides.

  • Advanced safety and sleek style meld in this bike helmet
  • Zipmold+ construction offers a lighter fit than ABS
  • MIPS tech reduces the rotational forces of crashes
  • 360-degree dial customizes your fit on the fly
  • 21 vents promotes high levels of cooling air flow


  • Familiarity: I've used it several times

This helmet is so much lighter than expected. I use it for my boosted board and love the amount of ventilation and then sun visor. Also its really good looking

love this thing!

  • Familiarity: I've used it several times

I bought this helmet for the visor and adjustability and I love it! the visor keeps the sun out of my eyes and the Boa system creates a perfect and very comfortable fit.

Great helmet, sketchy packing/shipping

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: Large

Nice helmet - perfect for bike commuting. Quality construction is evident, and the helmet is comfortable - more so than my roadie helmets. Good venting, and easy to attach a L+M Vis360+ lighting system. The real problem was the shipping experience. Dumped at the front door at nearly 10PM, and the shipping box looked like it had been through a prize fight The box with the helmet (image attached) was also damaged (though not nearly as bad) because there was no interior packing/cushioning materials (e.g. air bags, a la Amazon?) There needs to be a serious look at packing/shipping, apparently.

Great helmet, sketchy packing/shipping

Hi John,

Please let us know if you receive damaged packages. We will immediately exchange the products for new ones and file a complaint with the shipper.

Thanks in advance!

Hi John, 

Please let us know if you receive damaged packages. We will immediately exchange the products for new ones and file a complaint with the shipper.

Thanks in advance!


Adult Non-Adjustable
Head Circumference

20.5 - 21.2in

(52 - 54cm)

21.2 - 21.8in

(54 - 55.5cm)

21.8 - 22.4in

(55.5 - 57cm)

22.4 - 23.2in

(57 - 59cm)

23.2 - 23.8in

(59 - 60.5cm)

23.8 - 24.4in

(60.5 - 62cm)

Hat Size

6 1/2 - 6 3/4

6 3/4 - 7

7 - 7 1/8

7 1/8 - 7 3/8

7 3/8 - 7 5/8

7 5/8 - 7 7/8
Adult Adjustable
Head Circumference

20.5 - 21.8in

(52 - 55.5cm)

21.8 - 23.2in

(55.5 - 59cm)

23.2 - 24.4in

(59 - 62cm)

Hat Size

6 1/2 - 7

7 - 7 3/8

7 3/8 - 7 7/8

Junior Non-Adjustable
Head Circumference

20.3 - 20.9in

(51.5 - 53cm)

20.9 - 21.6in

(53 - 55cm)

21.6 - 22.4in

(55 - 57cm)

Junior Adjustable
 S / MM / L
Head Circumference

20.3 - 21.4in

(51.5 - 54.5cm)

20.9 - 22in

(53 - 56cm)

Kid's Adjustable
Head Circumference

18.5 - 20.1in

(47 - 51cm)

20.1 - 20.9in

(51 - 53cm)

20.9 - 21.8in

(53 - 55.5cm)

How to Measure:
Measure around your head where a hat would fit comfortably.