BELL Formula MIPS Adult Road Bike Helmet - Matte/Gloss Grays (2021), Medium (55-59 cm) : Sports & Outdoors Outdoor Recreation Cycling Helmets & Accessories Adult Helmets BELL : Amazon.com. Spend less. Smile more.

BELL Formula MIPS Adult Road Bike Helmet - Matte/Gloss Grays (2021), Medium (55-59 cm)

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FUSION IN-MOLDING POLYCARBONATE SHELL - A process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet.
MIPS-EQUIPPED - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts.
FLOAT FIT & NO-TWIST TRI-GLIDES - A minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS). Quick-adjust fasteners that help keep straps flat and properly positioned.
SWEAT GUIDE - Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear.
SPECIFICATIONS - Small (52-56 cm), Medium (55-59 cm), and Large 58-62 cm) Sizes. Important: always take a head measurement. Head sizes and shapes can vary, even within an age range. Using a helmet that does not fit can be dangerous; 19 vents.