Stirrup-ready, the Muck Boot Derby Ankle is designed for the rancher, farmer, or horse lover who spends days working on the farm or in the barn. This pull-on Chelsea is stylish enough to wear into town, but with durable and protective features designed for equestrian and on-the-farm life. A slim-last and breasted heel safely fit both Western and English style stirrups. 100% WaterproofSlip-On Chelsea Style 3MM Neoprene Bootie with Rubber Upper for Warmth, Comfort, and Protection 3mm Built-In Footbed for Underfoot Comfort