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® 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."