STLFLX - Non-Metallic SoleGUARDZ, Puncture Resistant Insole, Shoe Sole Insole for Regular Shoes, Work Boots, & Safety Footwear, Black, Polyurethane, Unisex, 9-10 US Men & 10-11 US Women, SEN-053 Large

I'm a roofer and work everyday on roofs. These insoles definitely work. They have saved my foot from a few nails already, definitely works.

Very comfortable, and very protective.I love these. I’m planning to buy one for every pair of shoes I buy. I only wish they lasted a little bit longer. They seem to wear down quite quickly. That having been said, they are the most comfortable and longest lasting of any Kevlar sole protection I have purchased.

These are not thin enough to use with a supportive insole. These are very hard and I cannot imagine wearing these all day at work. I returned.

Unusable due to thickness. Tried to replace original insoles in a pair of Redback boots; these wouldn't allow my feet comfortably into the boots again.

very good