The BGA Cottonwoods Merino Blend Cushion Ski Sock is our beefed up take on all-day comfort, built with zoned cushion at the shin and arch so we get support where it counts without bulky filler weighing down the boot. What Our Gearhead(R) Experts Are Saying:"The merino wool keeps my feet dry through a full day of laps, and the shin padding means my legs aren't aching from boot bite by the end of the run."