SKU: 20795140889

Troy Lee Designs - D4 Polyacrylite Linear MIPS Helmet (MTB)

Sale price$112.05 Regular price$124.50
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Troy Lee Designs - D4 Polyacrylite Linear MIPS Helmet (MTB)Troy Lee Designs D4 Polyacrylite Linear MIPS Helmet (MTB) D4 Polyacrylite Linear MIPS Helmet is a Troy Lee Designs mountain bike helmet built for gravity riders. The D4 platform is known for downhill focused coverage and a locked in feel when the terrain gets steep and fast. The Polyacrylite shell helps keep the price more approachable while still delivering the coverage riders expect. The Linear treatment gives this helmet a more individual feel than

Troy Lee Designs - D4 Polyacrylite Linear MIPS Helmet (MTB)

D4 Polyacrylite Linear MIPS Helmet is a Troy Lee Designs mountain bike helmet built for gravity riders. The D4 platform is known for downhill-focused coverage and a locked-in feel when the terrain gets steep and fast. The Polyacrylite shell helps keep the price more approachable while still delivering the coverage riders expect. The Linear treatment gives this helmet a more individual feel than a plain solid option. The MIPS-equipped build adds another layer of confidence for riders who prioritize modern helmet technology.

It is shaped for modern off-road mountain biking, with the secure feel, airflow, and coverage riders look for when the route mixes climbing, descending, and repeated hits through rough sections.

Why We Like It: it gives riders a stable feel on rough descents without turning every climb into a chore.

Why It’ll Work for You: This is a strong pick when you want a mountain bike helmet that feels at home on everything from rough local descents to destination riding.

Variants / Options: multiple sizes and colorways available; check the selector for current stock.

Key Features:
  • Troy Lee Designs - D4 Polyacrylite Linear MIPS Helmet (MTB)
  • 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.
  • 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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20795140889

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4.9 ★★★★★
Based on 8 reviews
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Nicole Hoyle Hedington
Belleville, US
★★★★★ 5
These are my favorite socks
Color: Blue & Green, Size: Medium
Theses socks are so comfortable perfect size and thickness theses were the only socks I took on a 2 week Ireland trip with me. These are a great value for your money and they look so cute on, I could not find any socks in Ireland that were as soft and have the durability that these have. I highly recommend! I am a sock lover also and picket about texture.
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Reviewed in the United States on October 19, 2025
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danna turner
Draper, US
★★★★★ 5
Dog approved
Color: Colorful, Size: Medium
Favorite bag for my dog
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Reviewed in the United States on May 30, 2026
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Geneva Thompson
Bozeman, US
★★★★★ 5
Repeat buyer
Color: Colorful, Size: Medium
This lasts a long time. We have a bigger one outside and smaller in east for dog to grab and us
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Reviewed in the United States on May 12, 2026
A
Verified Purchase
AnneMarie H.
Dallas, US
★★★★★ 1
Not as described
Color: Colorful, Size: Large, Color: Colorful, Size: Large
This item is vibrant in color, but I could tell right away, It wasn’t going to be durable and indestructible like the description said. My dog had it destroyed in less than a minute.
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Reviewed in the United States on May 29, 2026
M
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Mary
Louisville, US
★★★★★ 5
Great play for everyone
Color: Colorful-2, Size: Medium, Color: Colorful-2, Size: Medium
We have Shelties and they love it!!
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Reviewed in the United States on May 3, 2026

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