It wasn't easy to improve upon the class-leading design and function of their D3 helmet, but Troy Lee Designs made it happen. Built with an aerospace shell design and materials, they were able to get the D4 Composite helmet to 1050 grams without sacrificing any strength. The MIPS C2 protection system is used to add an additional layer of safety in the event of a fall.
For comfort, the D4 Comp routes cooling air through a front air intake system that flows through the polymer center and power grid side mesh keeping your head cooler during the ride. X-static® and XT2® anti-microbial/anti-odor padding keep the inside of the helmet a much nicer place to be.
MIPS Brain Protection System
20 high-flow intake and exhaust ports for maximum ventilation
Added eps and new headform shape for improved impact performance
Full incremental sizing for greater range of fitment
Strategically placed interior chinbar shock pads for comfort and durability
Quick-release and contoured 3D cheek pads for emergency helmet removal
Purpose-built internal cavities for audio integration
Stainless steel chinstrap D-rings are light and strong
Includes TLD drawstring helmet sock
Not intended for use with motorized vehicles
Free Exchanges: This product qualifies for free exchanges within the first 60 days after order. We'll cover the shipping both ways for US customers if you need a different size and/or color of this product. Returned product must be in new condition with all labels and packaging. Free exchanges apply only for product in stock or available for backorder.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Other styles of this product are available.
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A guide to selecting the proper bike helmet.