Troy Lee Designs D4 Polyacrylite MIPS Helmet Linear Black w23 plan your next escape from

plan your next escape from your daily routine

which enhances rotational impact protection

Equipped with a 1-degree bevel in the nose and tail and a 2-degree bevel between the feet for superior edge hold and no hang ups

Side Stash Pocket

Critically-taped seams lock out the elements

Troy Lee Designs D4 Polyacrylite MIPS Helmet Linear Black w23 plan your next escape fromEngineered for aggressive riding and trusted by elite downhill and BMX athletes, the Troy Lee Designs D4 Polyacrylite MIPS Helmet delivers proven impact protection in a lightweight, cost efficient shell. Mips C2 technology reduces rotational forces during crashes, while the Collarbone Suspension System and breakaway visor screws add critical safety enhancements. Ventilation is optimized through a multi port intake system, and the interior fit is fine