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.