Brand Tretorn Model: Optimist 470151 Colour Purple Upper material - natural rubber Lining: fleece, insulation Insole: textile Total height: 17cm Upper circumference (smallest size): 29 cm Ankle circumference (smallest size): 25,5 cm Sole: natural rubber Sole thickness: 2cm Shoe's weight (smallest size): 318g Series Tretorn Fall/Winter 2016