There have been many upgrades in technology over time allowing for better products from Rocky. One of the key technology changes has been in better designs. This work boot is made with a standard lacing option, plus the easy on-off feature of a side zipper. An additional key comfort feature of Rocky 4090 is its contoured removable EVA insole that provides direct underfoot cushioning. Another feature of this boot is its rugged rubber lug outsole for durability. If you are looking for a rugged women's 10 " uniform work boot with the dual options of lacing or zipping them as needed, the Rocky 4090 work boot may have just what you are seeking. Features Full-grain water-resistant leather Contoured EVA insole Rubber Lug Outsole and Non-Metallic Stabilizer Side Zipper for Easy On and Off Polishable toe 10 Inches in height GoodyearA(R) welt construction