Checking for product changes
Buy Now, Pay Later
As low as
$24.00
/ mo
Learn more
- – 6-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Friday, Jun 6
Recently Viewed
Color: Flat White
Size: XX-Large
Features
- Shell is constructed with ABS
- Weight: 1590G ( 50G)
- Moisture wicking, removable/washable air channeled comfort liner
- Integrated face shield
- Padded chin strap with double-d safety lock
Color: Flat White
Brand: O'Neal
Vehicle Service Type: street-cruiser-motorcycles, ATV, street-touring-motorcycles, off-road-motorcycles, PWC
Item Weight: 3.5 Pounds
Material: Acrylonitrile Butadiene Styrene (ABS)
Sport: Motorcycling
Finish Type: Glossy
Shell Type: Hard
Shape: Aerodynamic
Closure Type: Hook & Loop
Global Trade Identification Number: 01
Manufacturer: O'Neal
Model Name: Sierra II
Item Package Dimensions L x W x H: 16 x 12.4 x 11 inches
Package Weight: 2.18 Kilograms
Item Dimensions LxWxH: 16 x 1 x 12 inches
Brand Name: O'Neal
Warranty Description: See Manufacturer
Suggested Users: unisex-adult
Number of Items: 1
Part Number: 0817-516
Model Year: 2021
Style: Full-face-helmet-style
Included Components: helmet
Outer Material: ABS
Size: XX-Large
Date First Available: July 14, 2017
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jun 6
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Color: Flat Black
Size: X-Large
Helmet is snug at first. Like uncomfortably snug. I’m a few months in at this point and it fits absolutely perfectly, do not order a size up. It’s relatively light for the price and the built in visors are great, plus they still allow you to rock goggles if you fancy. The helmet looks cool and I have been a crash dummy, and I’m still alive so that’s a plus. Took a spill at about 20mph on a woods trail. Head hit super hard on dirt and rocks and I walked away with cracked ribs and a very mild concussion so I’d say she work's. Plus the helmet came out in one piece without even cracking the visor. Definitely worth the purchase. Would buy again.
...
show more
Reviewed in the United States on October 17, 2024 by Dennis J. Mailman Dennis J. Mailman
Color: Flat Black
Size: X-Large
Both me and my son wear this helmet when we ride our GX3 scooter that goes 40 mph. It’s comfortable, quiet, functional, and versatile. My son crashed going about 30 mph and the helmet held up very well. I pulled the helmet apart to inspect and make sure there was no serious defects after the crash that would need it to be replaced. All I found was just a few scrapes on the side of the helmet and visor where he made contact with the pavement. I typically wear a size large helmet, but decided to go with a XL because I have 9 piercings, 2 of which are 00g and 1 is an industrial so I need the extra space to comfortably slide my head in and out without irritating my ears. I also wear AirPod pros and the larger size accommodates nicely to keep them in place. Visors and padding are super easy to remove in order to thoroughly clean when needed.
...
show more
Reviewed in the United States on November 4, 2024 by Hi
Color: Flat Black
Size: X-Large
I got an XL and it snug, my hat size is 7 5/8" and my cheeks get oressed pretty hard with or without a balaclava. I put a stretcher in to relieve some of the pressure and it helped some. I like the sun visor, it was an unexpected surprise that i didnt realize before ordering. The lens is really the main feature I was drawn to so I didn't have to wear goggles too. But the lens fogs up as soon as I start breathing heavier in rough terrain or out the kid down when its warm. I'll be getting some anti-fog sokuti9n to see if it helps. Otherwise the Helmet is great, it's soft and comfortable inside and the mouthpc works as an adjustable vent, but still doesn't dear out the fog. Over all I give it 4 out of 6, keeping it a ½ size to smalll is my choice. In hindsight, I'd have gotten an XXL but I'm good with this XL
...
show more
Reviewed in the United States on November 20, 2022 by D. Welch
Color: Flat Black
Size: X-Large
I don’t have anything bad to say about this helmet. I read some other reviews about sizing. Just make sure that you buy one size bigger than what you normally wear. I followed that advice and the helmet fits great. The helmet fits snug without feeling like the padding is scrunching your face. The helmet is super light weight and it has a sleek design just like the pictures. I saw some reviews where the built in tinted shades were difficult to function. They were not, the slider that brings them over your eyes works great and provides great protection from the sun. Best helmet I’ve ever owned for this value.
...
show more
Reviewed in the United States on May 14, 2022 by Stephen
Color: Flat Black
Size: X-Large
Love my helmet it works so good and is very comfortable price was great too. Can wear my glasses in it which is great so I can see while I ride.
Reviewed in the United States on May 8, 2024 by Karen
Color: Flat Black
Size: X-Large
Excellent helmet, fit was snug at first yet, needed after some period of break in, it fits great. After regular use it is fitting better. Same with sunshine shield ; as the more I used it the easier it became to bring it down. The helmet keeps the noisey wind out and can hear my music on my ear phones off my IPhone, I get a lot of compliments on the look of the helmet, and I think it is starting a trend; more bikers are wearing these type helmets. It’s tuff, dropped it a few times, minor scratches. Tinted visor after a few uses able to bring it down easy. Clear shield comes in handy on the freeway. Only draw back is the triangle removable chin plate always come loose yet a little black duct tape has solved that issue.
...
show more
Reviewed in the United States on May 14, 2021 by Papa Bear
Color: Flat Black
Size: X-Large
Great Dual Sport helmet for the money! Fit was accurate, feels light weight, nice air flow. Flip down sun shield is nice. Visor works great. Lining is comfortable, DOT helmet. I would buy it again. It's a nice helmet for under $150.
Reviewed in the United States on March 31, 2021 by Stephen
Color: Flat Black
Size: X-Large
IL start by saying it's a nice quality helmet, it's comfortable, I did have to go a size larger and still have a snug fit so deffinitly recommend sizing up. It's very light weight has nice vision and tinted shades are easy to drop. Now the bad- More wind noise than I've ever experienced, it's worse than riding without a helmet to the point where you get a headache after riding longer than an hour. No adjustable air vents- the only adjustment is the mouthpiece which im pretty convinced has little to no impact. It does ventilate nicely. Visor is not removable. Yes you can physically take it off but then your clear windscreen does not properly lock open. The visor catches so much wind your constantly fighting to keep your head straight anything over 40mph. It's gotten to the point where I'm leaning my head forward just to catch a bit of a break. Overall it's not a bad helmet for the price, I'd say if your moreso riding on road then I'd keep looking as it has more disadvantages on road than not. It is a nice crossover helmet and I'd absolutely love it if it had adjustable air vents and a removable visor that still allowed me to use clear glass. Then this would be my favorite helmet.
...
show more
Reviewed in the United States on May 23, 2023 by Joe W.