Shoei GT-Air II Helmet.

Features

Aerodynamic Shell Design

• Aerodynamic properties are maximized through extensive wind tunnel testing and professional riders' feedback
• Multi-Piece, Multi-Density EPS liner enhances impact absorption and ventilation Three shell and four EPS liner sizes provide increased fit options that help to comfortably fit most head sizes
• Shell integrated spoiler reduces drag and lift, as well as reduces fatigue to rider's neck while riding at high speed

Sun Shield System

• Built-in QSV-2 sun shield gives riders instant relief from sun glare in one quick motion
• Sun shield meets ANSI Z80.3-2010 standard for non-prescription eyeglasses
• Large and easy to reach switch activates the 3D injection-molded inner sun shield
• Distortion-free shield blocks 99% of harmful UV rays
• New locking mechanism holds the visor firmly in place in the down position for easier removal/installation

Ventilation System

• Redesigned upper air intake shutter draws in more fresh, cooling air
• Enlarged lower air intake opening allows greater airflow into the chin bar area
• Large lower and upper vent shutters for ease of use with riding gloves
• Three (3) intake and six (6) exhaust vents
• Wind-tunnel optimized to maximize airflow and improve negative air pressure exhaust suction

Multi-Ply Matrix AIM Shell

• Proprietary technology integrates a multi-ply matrix specifically designed to meet DOT standards
• Hand-laid interwoven layers of fiberglass with organic fibers and resin
• Shell-integrated spoiler with consistent shell thickness ensures proper strength and weight

3-D Max Dry Interior System

• Fully removable, washable, replaceable, and adjustable
• Exclusive Max-Dry material absorbs and dissipates sweat two times faster than traditional nylon
• Three-dimensionally shaped to match the contours of a rider's head
• Multi-layer cheek pads for improved comfort and helmet stabilization
• Optional interior components available in different sizes for a customizable fit

Micro Ratchet Chin Strap

• Patent-pending 100% stainless steel interlocking mechanism
• Quick and smooth closure and release
• Comfortable and easily adjustable

CNS-1 Shield System

• The CNS-1, three-dimensionally curved shield offers a wider and taller field of vision
• Comes equipped with a Pinlock® EVO fog-resistant system
• New airtight window beading drains/prevents water from entering helmet
• Scratch resistant shield coating
• 99.9% protection from harmful UV A&B rays
• DOT-218

Sizing

To find the correct size helmet for a person's head:

1. Measure the head circumference one-inch above the eyebrows and ears

2. Using the circumference measured, use the size chart below to find the approximate size

3. Once you have tried on the helmet it should feel snug equally around the head. The helmet should not feel too tight or too loose at any point around head.

***Please remember that all head shapes vary slightly and that this sizing chart is to be used as a starting guide, not an exact guide.