World’s Softest Men’s / Women’s Sensitive Fit Comfort Feet Crew Socks feature a stretchy top that won’t bind and a smooth toe seam, designed for even the most sensitive feet. The plush terry sole gently cushions your step with pillowy softness, plus it has extra stretch built in for a great fit. Non-binding Soft Knit top adds 40% more cross stretch for a comfortable fit. Comfort fit design fits calves up to 18-inch. Thick, plush terry on the sole softly pads your steps. Soft Seam technology creates an ultra-smooth toe seam to help reduce rubbing and irritation. Reinforced heel offers durability in high stress areas. Moisture-wicking acrylic fibers keep feet cool, dry and healthy. Accepted by the American Podiatric Medical Association.Soft Seam technology creates an ultra-smooth toe seam to help reduce rubbing and irritation. Accepted by the American Podiatric Medical Association.