"OutdoorFox For hiking, camping or any year ?round outdoor activity. ? Wick Dry? Health System keeps feet dry and comfortable ? Duraspun? Hi-Wick acrylic for moisture management ? Cotton throughout foot for breathability and absorbency ? Lycra? knit stay-up leg ? X-TRA? cushion sole for shock absorption ? Linear looped toe seam for a flat seam and toe comfort ? Crew ? Medium weight Contents: 60% Duraspun? acrylic, 25% stretch nylon, 15% cotton, except 2% Lycra? spandex added to top Note: Small is not available in Forest/Khaki or Khaki Forest"