Fox River Bilbao Medium Weight Crew Hiking Sock - Men's Grey Small. The Fox River Bilbao Merino Socksis made using a soft itch-free Merino wool fiber that draws moisture away from skin. For the best possible method for keeping your feet warm and cozy all day choose the Fox River Bilbao Merino Socks. Specifications for Fox River Bilbao Medium Weight Crew Hiking Sock - Men's: Manufacturer: Fox River Gender: Unisex Age Group: Adults Footwear Type: Socks Activity: Sports Road Running Trail Running Hiking Running Casual Outdoor Seasonal/Temperature Use: All Seasons Footwear Closure: Slip On Fabric/Material: Wool Merino Wool Nylon Spandex Stretch Nylon Quantity: 1 Pair Application: Work Casual Everyday Outdoor Activity/Occasion: Sports Work Travel Outdoor Casual Hike Style: Original Moisture Wicking: Yes Apparel Fit: Comfort Features of Fox River Bilbao Medium Weight Crew Hiking Sock - Men's Spandex compression arch holds form and adds support Fully cushioned sole absorbs shocks and insulates Reinforced toe and heel add durability and longer sock life Smooth flat comfort toe seam Package Contents: Fox River Bilbao Medium Weight Crew Hiking Sock - Men's Fox River 2012-07015SM: Bilbao Medium Weight Crew Hiking Sock - Men's Grey Small