TLD D4 Polyacrylite MIPS Helmet - M-L - Shadow Olive YGroup_7033435521069 Cons: No good for warmer

Cons: No good for warmer months

Materials: Thermoplastic polyurethane

When you pair that with a 20” wheels

The great news is that it still works with a normal freehub body and chain so there aren't any new standards you need to worry about

Inseam & back laser perforation for increased airflow

TLD D4 Polyacrylite MIPS Helmet - M-L - Shadow Olive YGroup_7033435521069 Cons: No good for warmerD4. Redefining everything The reigning king of full face helmets, the D4 range expands with a Polyacrylite model packing the same safety and comfort features as the premium carbon and composite models into a price conscious shell. Details make the D4 the most coveted full face in mountain biking, including Mips C2 brain protection, an air intake system for ventilation, and an unmatched anatomical fit. This helmet is designed and intended exclusively