Troy Lee Designs D4 Polyacrylite Mips Helmet (2024) - Shadow Blue


Introducing the D4 Polyacrylite helmet: high-end safety and comfort at a more affordable price! Features Mips® C2 technology, ventilation system, and superior fit for BMX riders.


D4 lineup grows with a Polyacrylite option that offers comparable
safety and comfort benefits to the high-end carbon and composite models
at a more affordable price point. Notable features such as the Mips® C2
technology for brain protection, a ventilation air intake system, and a
superior anatomical fit, make the D4 the ultimate choice for
biking enthusiasts.

Troy Lee Designs D4 Polyacrylite Mips Helmet (2024) - Shadow Blue Specifications

Composite shell

MIPS brain protection system, reduces rotational forces to the brain in some crash scenarios

Three shell sizes to more accurately fit a variety of head sizes and rider ages, improving overall safety

Removable snap-in, washable comfort liner with Coolmax® and Dri-lex® moisture-wicking materials

Super light titanium D-rings save weight and have increased material tensile strength

CPSC 1203*, CE EN1078*, ASTM F1952-DH, ASTM 2032-BMX. *Varies by regional standards