SUPER GRIT 17255 Slip-Resistant 17" Pull-On Stretch Rubber Overboots for Rain, Snow, Ice and Construction, Large/X-Large (One Pair) Aluminum oxide grit sole bars provide additional traction for slippery conditions Lasts 6 to 8 time longer than synthetic rubber or PVC overboots Almost impossible to puncture or tear; If damaged, tear won't 'run' One-piece molded design is not right/left foot specific Made in the USA