The D3 Helmet is constructed from technologically advanced aerospace carbon and has been crafted following the Troy Lee Designs blueprint, ensuring safety and flaunting style. It also comes with 2 adjustable visors for custom height placement and machined titanium screws for reduced weight. The D3 takes advantage of a dual density shock pad system that helps absorb smaller impacts, withstand multiple hits, and add more durability to the single impact absorbing EPS liner. Taking breathability and airflow to the next level, the D3 Helmet features 14 intake ports over the forehead, brow, and chin areas to guide air past your head, while the 6 high-flow exhaust vents release hot air ensuring an even flow of cool air throughout the helmet's interior.
Technologically advanced carbon fiber shell construction
Digital wind-tunnel-tested, aerodynamic shell design
Revolutionary injection-molded air intake 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
Deep eps channeling for optimal airflow
Strategically placed interior chinbar shock pads for comfort and durability
Removable, washable padded liner with CoolMax and dri-lex moisture wicking materials
Contoured 3d cheekpads fit anatomically
Quick-release cheek pads for emergency helmet removal
Purpose-built internal cavities for audio integration
Titanium hardware for reduced weight
Includes 2 lightweight, streamlined visors and a helmet bag
Exceeds bicycle certifications: CPSC 1203, CE EN 1078:2002+A1:2012 ASTM F1952-15, ASTM F2032-15, ASTM F2040-11
Not intended for use with motorized vehicles
Head Circumference (in)
Head Circumference (cm)
6 1/2-6 5/8
6 3/4-6 7/8
7 1/4-7 3/8
7 1/2-7 3/4
7 7/8-8 1/8
How to Measure To find your perfect fit, measure the circumference of your head just above your ears and eyebrows using a cloth tape measure or a piece of string and a ruler. Use the chart above to determine the proper helmet size for you.
it is my 2nd d3, 4th tld helmet overall, and im not going anywhere else in the shor term. Perfect fit and awesome looks make it a winner. It is pretty well vented allthough for long uphill days I take the stage.
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