Caterpillar Holton Steel toe cap Dual density PU Sole Goodyear welting Sole resistant to 300 degrees Engineered sole offering slip resistance, flexibility and comfort Padded top for added comfort and ankle support SB HRO SRC Rating Sizes 41-47 Dimen 6′ Steel toe cap Dual density PU Sole Padded top for added comfort and ankle support SB SRC Rating Sizes 41-47 Streamline Composite toe Composite Midsole Metal Free Contoured Footbed – Shaped to fit the foot Foam Collar S1P HRO SRC Rating Sizes 41-47