Altec Helmet Size Chart

Whether it’s hard-charging trails or hammering hills, the 100% ALTEC is the rider’s choice for an incredibly lightweight, ventilated and protective trail helmet. Also featuring the Smartshock suspended rotational system, the ALTEC’s patented Smartshock elastomers reduce energy transfer over a wide range of speed and impact types.
• Smartshock — 14 Point Smartshock Rotational Protective System
• Multi-Density EPS Foam — Injection molded with polycarbonate
• Massive Airflow — With an impressive 15 ventilation ports
• Altec 350g / M-Shell — Expanded coverage while still lightweight
• Sunglass Storage — Integrated sunglass storage system
• Multi-Point Adjustable Visor — For maximum vision & goggle stowage
• Washable & moisture-wicking liner
• Adjustable Ratcheting Fitment System
• Nexus Push Release Snap-Buckle
• Size specific molds — XS/S, S/M and L/XL
Sizes:
• XS/SM: 50-55cm / 19 5/8″ – 21 5/8″
• MD/LG: 55-59cm / 21 5/8″ – 23 1/4″
• XL/XXL: 59-63cm / 23 1/4″ – 24 3/4″
• Certifications: ASTM (F2032-15), CPSC (16 CFR 1203), CE (EN 1078:2012+A1:2012), and AS/NZS (2063:2008) Bicycle Standards.
Brand: 100%
Brand | 100% |
---|---|
Size | Large / X-Large, Small / Medium, X-Small / Small |
Color | Black, Charcoal, Red |
As a basic guideline, we offer free shipping on orders over $50* shipped within the Continental US, and orders under $50 will have calculated shipping applied. Outside the Continental US, shipping is calculated based on the items in the cart. A shipping calculation can be had by adding the product(s) to your basket and visiting the shopping cart.
* Certain large/oversize items, even if the $50 threshold is met, may have a shipping charge applied. This will be calculated in the shopping cart.
For a more complete shipping overview, visit our Shipping & Returns page.