Sonic Midweight Merino Wool Sock Size:Medium •100% waterproof and windproof material

•100% waterproof and windproof material

Both ways offer the perfect combination of heat and support

• Move-able waterproof neoprene battery case

Medium 38"-40"

A must for snowmobiling

Sonic Midweight Merino Wool Sock Size:Medium •100% waterproof and windproof materialOur improved R. U. Outside Sonic Midweight Sock is an ideal year round sock for snowmobiling, skiing, biking, hiking, working and more. Constructed of 85% Dri Release Merino wool, 15% Nylon. It is taller and more comfortable than the last model. Extra arch and ankle support is sewn in, and the heel area is reinforced for durability. It wicks moisture to keep you dry, and makes the miles fly by, all year. Constructed of incredibly comfortable Merino