Swift T is made for cozy adventures and endless play. Built from tough PU and nylon, this boot's Thermolite insulation keeps feet warm all day. With an easy Velcro closure, getting ready for fun is quicker than everjust strap in and go! Outsole:  Synthetic Down to -24c or -11f Great for everyday wear and outdoor fun Grippy sole for stability and support Nylon and pu construction Thermolite insulation Velcro closure