Shimano Di2 GRX Groupset 1x12 42T

Marsoni

M251S

$812.46

Get it in 3 business days with 1 day shipping. Friday, May 29

Shimano Di2 GRX Groupset 1x12 42TGRX Single 42T 12 speed wireless groupset Includes Front Brake GRX Di2 12 speed STI bled with BR RX820 calliper, right front Rear Brake GRX hydraulic disc brake lever bled with BR RX820 calliper, left rear Rear Mech RD RX827 GRX Di2, 12 speed rear derailleur Crankset FC RX820 GRX chainset 42T, single, 12 speed, Hollowtech II, 175 mm Cassette CS M8100 XT 12 speed cassette 10 51T Chain CN M8100 XT Ultegra HG+ chain with quick link, 12 speed, 126L BT

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Awesome cases! They really are cool to the touch. I didn’t sleep hot at all. I have a “cut-out” memory foam pillow, and this stretched around it perfectly. It is flexible enough that it doesn’t impede with the cut out. And while the material is “silky,” it doesn’t slide around the pillow while sleeping on it. The zipper feature is perfect. I washed and dried per the tag instructions and they washed very well. Super happy.

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Reviewed in the United States on April 8, 2026

Verified Purchase

Jane - NY

Carnegie, US

★★★★★ 5

AMAZING - LOVE THESE!

Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft

I've been using these pillow cases for more than 6 months and LOVE them. They are well made, no wrinkling, fraying or wearing out, even with a weekly washing. I love the zippers on them, my pillows fits perfectly in the case and don't constantly escape from the case overnight. They definitely perform as described: they keep me cool at night and don't smell and actually don't make a mess of my hair. I bought an extra one and put it on a pillow I keep close to my body which helps me from overheating during the night. They are a great value for the price, I wish I could get top sheets in the same style as these and I'd be in heaven!

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Reviewed in the United States on March 23, 2026

Verified Purchase

Amazon Customer

Natrona Heights, US

★★★★★ 3

Cool Pillowcases

Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft

These pillow cases are silky soft and cool to the touch. They don’t stay as cool as I would like, however, so I find myself moving around on the pillow to find a cool spot or flipping the pillow over. I have washed them several times and the coolness seems to be diminishing. Still, it’s better than a regular cotton pillow case. The zipper is needed and helps keep the material on the pillow.

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Reviewed in the United States on August 20, 2025

Verified Purchase

Scott Mautino

Whiting, US

★★★★★ 5

By far the best cooling pillow case I’ve bought highly recommend

Color: Blue, Size: Standard, Set name: Silky

Highly recommend best cooling pillow case I’ve bought very soft and comfortable seems to be made from good material as well

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Reviewed in the United States on May 3, 2026