Spenco® PolySorb® Heavy Duty Occupational Replacement Insoles for workers seeking all day comfort, cushioning, and support- providing targeted shock absorption to soften heel impact. Features & Benefits: * SpenCor Heel-Strike Pad provides extra cushioning and shock absorption at the heel. * Lightweight POLYSORB Polyurethane Foam provides arch and heel support. * SpenCor Material a 5/32" layer of this material absorbs shock and impact to provide intense comfort and cushioning. * SBR Forefoot Pad provides superior cushioning and energy return for people on their feet all day. * 4-Way Stretch Fabric with Silpure Antimicrobial helps prevent blisters while controlling odor. * Maximum Comfort—All Day Long best for low to medium arch Proven cushioning and support for standing or walking on hard surfaces. Ideal for: work shoes or boots Six sizes fit men’s 6-15 and women’s 5-12. Thickness at the heel is 1/2 inch. Thickness at forefoot pad is 1/4 inch. Instructions: Remove the original insole from the shoe (some brands of shoes glue the insole to the shoe, but careful removal will not damage the shoe). Use the original insole as a guide to trace and trim the Spenco Polysorb Heavy Duty Insole. Care: Hand wash in warm water. Air dry.