FORWARD FLEX | Prevents the sock from bunching which helps to ensure comfort. SHOCKZONE | Engineered with an advanced zonal padding system that provides extra support and comfort to areas of the foot and leg. MERINO WOOL | Knit with MERINO WOOL for superb softness next to skin while providing excellent thermal and moisture control properties. COOLMAX | Contains COOLMAX fiber combined with nylon for a soft, fine touch next to skin. The 4-channel construction draws moisture away from the skin and transports it to the outer surface for maximum dryness and comfort all day. FLAT TOE SEAM | An almost invisible hand linked toe seam closes the toe boxes creating a comfortable, flat seam that doesn't create excess bulk and cause irritation. FORWARD FLEX | Prevents the sock from bunching which helps to ensure comfort. SHOCKZONE | Engineered with an advanced zonal padding system that provides extra support and comfort to areas of the foot and leg. MERINO WOOL | Knit with MERINO WOOL for superb softness next to skin while providing excellent thermal and moisture control properties. COOLMAX | Contains COOLMAX fiber combined with nylon for a soft, fine touch next to skin. The 4-channel construction draws moisture away from the skin and transports it to the outer surface for maximum dryness and comfort all day. FLAT TOE SEAM | An almost invisible hand linked toe seam closes the toe boxes creating a comfortable, flat seam that doesn't create excess bulk and cause irritation.