---
product_id: 540876022
title: "O'Neal Sierra II Mens Full-Face Slingshot Helmet"
brand: "o'neal"
price: "€ 13.36"
currency: EUR
in_stock: false
url: https://www.desertcart.fi/products/540876022-oneal-sierra-ii-mens-full-face-slingshot-helmet
store_origin: FI
region: Finland
---

# UV Protection Optimal Ventilation DOT Certified O'Neal Sierra II Mens Full-Face Slingshot Helmet

**Brand:** o'neal
**Price:** € 13.36
**Availability:** ❌ Out of Stock

## Summary

> 🏍️ Gear Up for Adventure!

## Quick Answers

- **What is this?** O'Neal Sierra II Mens Full-Face Slingshot Helmet by o'neal
- **How much does it cost?** € 13.36 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/540876022-oneal-sierra-ii-mens-full-face-slingshot-helmet)

## Best For

- o'neal enthusiasts

## Why This Product

- Trusted o'neal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Secure Fit:** Double-ring closure ensures a snug fit, so you can focus on the adventure ahead without distractions.
- • **Breathe Easy:** Experience unparalleled airflow with strategically placed vent holes for maximum cooling during your rides.
- • **Stay Protected:** Integrated face shield shields you from UV rays while enhancing your visibility on the road.
- • **Comfort on the Go:** Enjoy a moisture-wicking, removable liner that keeps you fresh and comfortable, ride after ride.
- • **Safety Meets Style:** Ride with confidence in a DOT-certified helmet that combines sleek design with robust protection.

## Overview

The O'Neal Sierra II Mens Full-Face Slingshot Helmet is a high-performance motorcycle helmet designed for off-road enthusiasts. Constructed with a durable ABS shell, it features a moisture-wicking, removable liner, optimal ventilation, and an integrated UV-protective face shield. With a secure double-ring closure and DOT certification, this helmet ensures safety and comfort for every ride.

## Description

O'NEAL produces motorcycle and cycle gear, parts, apparel and accessories that absolutely offer the best in comfort, quality and protection every time you ride. Security, quality and protection you can trust after nearly 40 years of racing. Features: Shell IIS constructed with ABS - Weight: 1590g ( 50g) - Moisture wicking, removable/washable air channeled comfort liner- Vent holes for optimal ventilation - Integrated face shield- Height adjustable helmet shield - Padded Chin Strap with Double-D safety lock - Meets DOT and ECE 22.05 safety standards - Designed for Street, Enduro, Side by Side and Adventure Bike's- Replacement parts available.

## Features

- Shell is constructed with ABS
- Moisture-wicking, removable/washable air channeled comfort liner
- Vent holes for optimal ventilation
- ntegrated face shield with UV protection
- Padded Chin Strap with Double-D safety lock

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Sport | Motorcycling |
| Certificate type | DOT |
| Shell type | Hard |
| Shape | Oval |
| Closure type | Double Ring |
| Manufacturer | O'NEAL |
| Model name | O'neal | Motorcycle-helmet | Enduro Motorcycle | Ventilation Openings for Maximum Airflow and Cooling, Abs Shell, Integrated Sun Visor | Sierra Helmet R | Adult | Black White | Size Xs |
| Color | Black/White |
| Size | XS |
| Style | Off-road |
| Material Composition | 100% Polester |
| Material Type | Polyester |
| Number of Items | 1 |
| Outer Material | Acrylonitrile Butadiene Styrene (ABS) |
| Included Components | Helmet |
| Batteries Included? | No |
| Department | Unisex |
| Item model number | 817 |
| Product Dimensions | 33.02 x 30.48 x 40.64 cm; 50 g |
| ASIN | B089SWT7M2 |

## Product Details

- **Colour:** Black/White
- **Brand:** O'Neal
- **Vehicle service type:** Motorcycle
- **Item weight:** 50 Grams
- **Material:** Polyester

## Images

![O'Neal Sierra II Mens Full-Face Slingshot Helmet - Image 1](https://m.media-amazon.com/images/I/61mlHyRlooL.jpg)
![O'Neal Sierra II Mens Full-Face Slingshot Helmet - Image 2](https://m.media-amazon.com/images/I/61aacGlw1HL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

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**Shop now:** [https://www.desertcart.fi/products/540876022-oneal-sierra-ii-mens-full-face-slingshot-helmet](https://www.desertcart.fi/products/540876022-oneal-sierra-ii-mens-full-face-slingshot-helmet)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-08*