Best in 7 days
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Smith Mainline MIPS Full Face MTB Bike Helmet Adult Medium (55-59cm) Matte BlackSmith Mainline Full Face Mountain Bike MIPS helmet in size Medium (55 59 cm). The color is Matte Black. The pinnacle helmet in Smiths mountain bike collection is the all new, DH certified, Mainline. Featuring complete Koroyd coverage and the MIPS rotational system, the Mainline provides exceptional protection while combining internal air channels and open exhaust ports to maximize breathability. As goggle fit and ventilation are crucial for grueling
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 483 reviews
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Product Reviews
★★★★★ 5
Soft and cool. Very cool. 🧊
Size: Queen, Color: White
I bought these for my memory foam pillow and they’re excellent for cooling it. I use 2 of these on the pillow for maximum chill factor and it works.
They’re very soft, the zippers are high quality. Easy to put on with a bit of stretch- generously sized. They’re stain resistant. I’m glad they’re NOT waterproof because they’d be too hot then. They’re very durable. Wash on delicate setting in a mesh bag and air dry and they last long. They’re very quiet- smooth and silky. Definitely recommend!
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Reviewed in the United States on January 15, 2026
★★★★★ 3
Cool enough
Size: Queen, Color: White, Size: Queen, Color: White
I thought I had purchased pillows so when I received these I was a little disappointed. However that was 100% on me for not reading the listing and just trusting my search. I decided to give them a try and so far they seem ok. They don’t stay cool even though I have them on cooling pillows. They are super thin but very soft. They fit on my pillows perfectly. I don’t think it has improved my sleep quality but it hasn’t made it any worse either. I don’t think they are waterproof but I don’t really want to test that. I like that the zipper is small and seems to be decent quality. Smelled heavily of chemicals when I first took it out of the package but that disappeared after a few minutes.
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Sleep like a baby
Size: Queen, Color: White
These pillow covers are cool. They keep you cool at night. very, very comfortable.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Very well made.
Size: King, Color: White
These work great and look good.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Pillow
Color: White, Size: Standard/Queen
Very comfortable
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Reviewed in the United States on December 3, 2025
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