Ridge Footwear Men's Ultimate Mid Zipper Work Boot 100% synthetic Imported Rubber sole Shaft measures approximately 5" from arch Waterproof toe box Seam-sealed, ripstop upper Poron padded footbed Tru-Fit removable insole PU midsole Air and gel shock-absorbing heel Oil-resistant traction outsole A side zipper makes it easy to get in and out of these heavy duty, yet surprisngly lightweight work boots.