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Giro Merit Spherical MIPS Bike Helmet

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Giro Merit Spherical MIPS Bike Helmet

sku# 216646
Model Info


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Product Info

The Giro Merit Spherical MIPS® is jam-packed with features to cover your head on rowdy rides. Spherical Technology combined with MIPS® offers premium protection by mitigating rotational energy with Progressive Layering™ EPS and EPP foam for different impact speeds. Wind tunnel vents keep the air flowing and the Roc Loc® Air Fit system ensures a dialed fit for the ultimate protective performance.

Product Details


In-Mold Polycarbonate Shell

EPS and EPP Liner


Hardshell with In-Mold Hardbody™ Lower WrapThe two-piece shell combines a tough outer hard shell with a polycarbonate lower shell permanently fused to the liner for durability without excess weight.

Progressive Layering™Two different materials are used to manage impact energy: One layer is EPS, which is well suited to high-speed crashes. The other is a lower density EPP foam with rebound characteristics that address the more common, low speed impacts.


Roc Loc® Air DHAdjustable fit system enhances the helmet's comfort, stability, and interior ventilation while reducing the chances of accidental adjustment.


Wind Tunnel™ VentilationGiro helmets are developed utilizing the proprietary Wind Tunnel™ ventilation system, which combines active vents with internal exhaust channels that thrust cool, fresh air over and around the riders head-while forcing heat and stale air out. This significant increase in air channeling makes a difference that riders will immediately feel and appreciate.

Additional Features

MIPS® SphericalMIPS® Spherical is a pair of foam layers that work like a ball and socket to redirect impact energy in a crash. The system uses two distinct layers of foam within the helmet, rather than a single layer of foam and plastic liner. One layer is EPS, which is well suited to high-speed crashes. The other is a lower density EPP foam with rebound characteristics that offer protection in low speed impacts.

Adjustable Moto-Style Screw-In VisorThis visor features an adjustment mechanism that lets you move the visor up and down in indexed steps. These steps include three riding positions plus a high position for goggle storage above your brow, allowing you to easily adjust your visor with one hand while riding.

Safety Standards

Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older


  • Material: EPP, EPS, Polycarbonate
  • Biking Type: Mountain
  • Helmet Style: Full Shell
  • Helmet Venting: Fixed Venting
  • Visor: Yes
  • Removable Ear Pads: No
  • Adjustable Fit: Yes
  • MIPS: Yes
  • Warranty: 1 Year
Size S M L
Weight (g) 360

Other Notes

Giro products can only be shipped within the United States and Canada



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