The booties were constructed from Firewall 220 fabric. This is a 3-layer softshell fabric comprised of a knit fabric with a breathable polyurethane membrane. The fabric gives full range of motion, which means your ankles still flex. The dual-action of wicking and breathability from the inside, combined with wind and water resistance on the outside protects you in the coldest winters.
|Closing Device||Heel zipper Vecro tab at ankle|
|Fabric||Firewall 220 fabric|