The superior support of the Anti-Fatigue Technology ESD Footbed by Timberland PRO will keep you comfortable all day long. Please note this is a replacement insole that is ideal for an ESD-protected boot. Insole does not contain ESD protective technology. Anti-Fatigue Technology reduces stress on the feet to help guard against foot and leg fatigue. Anatomically-contoured footbed cradles the foot for maximum comfort and support. Dynamic arch design adapts to all foot shapes. Hand wash with warm water and mild detergent, and let air-dry. Imported.