DESCRIPTION
The 4Forty Air MIPS is equipped with pro-level features yet designed with the privateer in mind. With a sleek new shell design and 3-position visor, the benefits aren’t just visibly rad but functionally significant for increased air ventilation, effective
sweat management, and better goggle compatibility. Our Float Fit™ system, built-in Sweat Guide™, and anti-microbial Ionic+ padding ensures all-day comfort, while integrated MIPS and extended hard-shell coverage helps you stay committed in all
shred conditions. Upgrades like eyewear ports, a Fidlock® magnetic buckle, and premium straps make the 4Forty Air MIPS your go-to for daily trail riding life.
CERTIFICATIONS
CPSC Bicycle, CE EN1078
VENTS
14
ROTATIONAL ENERGY MANAGEMENT
MIPS® (integrated with fit system)
CONSTRUCTION
Fusion In-Mold Polycarbonate Shell
FIT SYSTEM
Float Fit™(integrated with MIPS)
WEIGHT
360 grams (size M)
SIZES
S 52–56 cm
M 55–59 cm
L 58–62 cm
XL 61–65 cm
OTHER TECH AND FEATURES
3-Position Adjustable Visor
Goggle Gripper
Eyewear Ports
Fidlock® Magnetic Buckle
No-Twist Tri-Glides™
Sweat Guide™
Ionic+™ Comfort Padding
PLU: 86017
SPECIFICATIONS
SIZE INFORMATION
These size charts and conversions are meant to serve as a guide. We recommend you try the helmet on in store to ensure full comfort and performance.
| SIZE | CM | INCHES | HAT SIZE |
|---|---|---|---|
| SM | 52—56 | 20½″ — 22″ | 6½″ — 7″ |
| MD | 55—59 | 21⅝″ — 23¼″ | 6⅞″ — 7⅜″ |
| LG | 58—62 | 22¾″ — 24⅜″ | 7¼″ — 7¾″ |
| XL | 61—65 | 24″ — 25⅝″ | 7⅝″ — 8⅛″ |
| Universal Adult | 54—61 | 20¼″ — 24″ | 6¾″ — 7⅝″ |
| Universal Women's | 50—57 | 19⅝″ — 22½″ | 6¼″ — 7⅛″ |






















