Vivobarefoot Tracker II FG Women’s Size 37 EU, size 6.5 US Bracken, Brown color. A barefoot hiking boot that is waterproof, lightweight and flexible. The shoe contains a thermal insole with puncture resistant outsole. I love this brand but for some reason this style doesn’t work for me. It too a while for me to figure it out. My feet stay nice and toasty though, even in the cold New England winters!