


*ONEAL SIERRA II Flat Adult Adventure Helmet
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
*ONEAL SIERRA II Flat Adult Adventure HelmetSIZING CHART Whether you ride on the pavement or the dirt or both the Sierra II has the features you need for your next two wheel adventure. Combining a full windscreen and a visor with a drop down tinted shield, the Sierra II helmet will get you anywhere you want to go. FEATURES: Shell is constructed with ABS Weight: 1590g (50g) Moisture wicking, removable washable air channeled comfort liner Vent holes for optimal ventilation Integrated face shield
Quick Dispatch:
Your *ONEAL SIERRA II Flat Adult Adventure Helmet orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your *ONEAL SIERRA II Flat Adult Adventure Helmet ships.
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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
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★★★★★ 3
Legs curl up, panty liners don't stick, front and back are cut exactly the same.
I wear a pants size 8, and purchased an XL in these because I don't like tight underwear. They feel good, and fit well -- not baggy and not tight. However, the legs do curl up, which I might have expected if they were tight, but they're not. Panty liners stick at first, but not all day. And although there is printing on the inside back to provide a clue about what is supposed to be front vs back, there is no difference in the cut. The waist hits a bit lower in the back (on me) than in the front, which is not a deal killer, but, REALLY?? I'll keep these, but will keep looking for a better fit, and legs that don't curl up.
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Reviewed in the United States on July 25, 2022
★★★★★ 5
But - you can’t always figure out the back or front
Easy to wash and a good fit.
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Reviewed in the United States on July 27, 2025
★★★★★ 5
Excelentes
Color: Set8-4, Size: XX-Large
Lindos, cómodos y el materia no se marca sin ser delgados
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Reviewed in the United States on February 10, 2026
★★★★★ 5
Great non plastic shirt for exercise and daily wear
Color: Claret, Size: Large
Soft and comfortable. Breathable material for exercise. Fits well (L, 5'3",150lb). Wish it was and inch or 2 longer
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Super nice shirt!
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I actually bought this shirt to wear under zip-up hoodies. It's super soft and cozy. It washes up great and is very durable. I just ordered two more in different colors! A great value - perfect!
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