DESIGN & CONSTRUCTION: 1000D Nylon and PU upper LSG(TM) (Locking Stud Grip) attachment points embedded into the sole Designed to be worn with neoprene booties and with or without wading studs Reinforced toe and heel cap Locking lace hooks Padded collar Durable web heel pull tab Outsole stud attachment point locks your studs in place LSG(TM) system is integrated in all Compass 360(R) wading soes