The TLD D4 Polyacrylite Helmet (MIPS) / Shadow Timber is a tan and black full-face motocross helmet with a visor, designed for off-road use. It boasts a durable Polyacrylite shell, vibrant side graphics, and Mips brain protection for superior safety.

The Troy Lee Designs helmet size chart provides detailed head circumference guidance in centimeters for full-face models like A1, A2, Stage, SE4, SE5. Models such as the TLD D4 Polyacrylite Helmet (MIPS) / Shadow Timber feature advanced Mips technology and durable polyacrylite shells.

The TLD D4 Polyacrylite Helmet (MIPS) in Shadow Timber is a matte gray full-face helmet with a polyacrylite shell and visor, featuring "Troy Lee Designs" on the side and top, and includes Mips brain protection for enhanced safety.

The TLD D4 Polyacrylite Helmet (MIPS) / Shadow Timber offers a top view of a dark, glossy full-face motocross helmet with ventilation slits and an angular design, enhanced with Mips brain protection for added safety.

Description

Earthy tones and less groans with this epic helmet from TLD!

D4 Polyacrylite MIPS Full Face Helmet
Price conscious, comfort and safety

DISCIPLINE: Downhill, BMX
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.

FEATURES
• Mips® C2 Rotational Impact Brain Protection System
• Advanced Polyacrylite shell construction
• Front air intake system, with high flow through polymer center and power grid side mesh
• Collarbone Suspension System
• Breakaway visor screws
• Anti-microbial padding
• Quick release contoured 3D cheek pads for anatomically optimized fit

TLD D4 Polyacrylite Helmet (MIPS) / Shadow Timber

Name: TLD D4 Polyacrylite Helmet (MIPS) / Shadow Timber
Brand: Troy Lee Designs
SKU: 175499015
Price: 419.0 USD
Availability: OutOfStock

Brand: Troy Lee Designs SKU: Click to copy the SKU and show the pick location

$419.00 USD

Or 4 payments of $104.75 USD with

Colour - Timber

Size - XL-XXL

The D4 (Carbon, Composite and Polyacrylite) comes in three shells, each covering two sizes. Pick the shell that covers your measurement.

Size	Head circumference	Notes
XS-S	53–56cm	XS 53–54 · S 55–56
M-L	57–59cm	M 57–58 · L 58–59
XL-XXL	60–63cm	XL 60–61 · XXL 62–63

TLD says: if you are between sizes, consider the larger size for a more relaxed fit. Spare cheek pads and a head liner are included to fine-tune the fit.

How to measure

Wrap a soft tape measure around the widest part of your head, about 2.5cm above your eyebrows and just above your ears. Keep it level and snug but not tight, and read the number in centimetres.

No tape measure? Use a piece of string or a shoelace, mark where it meets, then measure the string against a ruler.

Between two sizes? Most helmet brands recommend the larger size and using the thicker set of pads. A helmet should feel snug all round with no pressure points, and shouldn't rock when you shake your head.

Read the full buying guide