How to measure your size – You can measure the length and width of your hand as illustrated, and use the Size Guide to determine your size.
1. Wrap the tape measure around your hand at the widest part of the palm, and lightly close your hand to get your Hand Width measurement.
2. Once you have that measurement recorded, use a tape measure to determine the length of your hand from the tip of your longest finger to the base of your palm at the wrist. This is your Hand Length measurement.
3. You can then compare the measurements of your hand with the data supplied in the Size Guide to determine the best fitting size for you.
Experience next-level trail performance with the Giro Chamber III MTB Cycling Shoes. Built lighter and slimmer than ever, these SPD-compatible shoes combine aggressive downhill capability with responsive pedal power. The supple microfiber upper wraps your foot in a secure, locked-in fit, while the streamlined tongue reduces bulk for a featherweight feel. Dual retention—Velcro strap and laces—adapts to your foot's unique shape, ensuring comfort across varying volumes. Grip and durability come from Giro's proprietary Sensor rubber outsole, engineered for trail demands. The clipless-compatible DH plate with +10mm cleat setback delivers the ideal blend of stiffness for power transfer and walkability for technical terrain. Whether you're charging downhill or grinding uphill, the Chamber III keeps you connected to your bike and confident on every pedal stroke.
KEY FEATURES
MICROFIBER UPPER — The microfiber construction delivers lightweight durability with water-resistant, breathable protection that keeps your feet comfortable in varied conditions. A fully-wrapping, bulk-free tongue eliminates restriction while maintaining a secure, supportive fit throughout your ride.
VELCRO® POWERSTRAP — The dual-closure system combines a Velcro® Powerstrap with traditional lacing to lock your heel in place, delivering enhanced security and support that adapts to your foot's unique fit.
ROCKPRINT — Strategic Rockprint reinforcement guards the toe and heel—the zones that take the hardest hits—extending shoe life and maintaining performance through countless trail sessions.
SENSOR™ RUBBER — Giro's exclusive Sensor™ rubber compound balances aggressive traction with featherweight construction. Co-molded directly to the composite plate, it creates a permanent, adhesive-free bond that won't separate or fail.
CUSTOM DH SHANK — The custom DH shank positions your cleat 10mm further back than standard MTB shoes, creating a more stable, centered platform for aggressive descents while maintaining the efficiency needed for climbing and pedaling.
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