Isolabella boots combine style and functionality. The luxurious, satin-finish upper features a pfc-free, water-repellent finish. Primaloft insulation keeps your feet warm in the cold of winter. Our special midsole ensures hours of comfort. The rubber sole features our toughest grip technology to give you excellent traction on slippery surfaces.Features: 100% recycled lacefeatures: 100% recycled polyester webbingfeatures: 100% rpet reinforcement band and collar reinforcementfeatures: 100% recycled liningfeatures: 30% recycled rubberfeatures: 30% recycled eva midsolefeatures: faux shearling liningfeatures: insulated liningfeatures: snowprooffeatures: primaloft 200 gramsfeatures: over 60% of the shaft is made from recycled materials.Certifications: thermal index 30-40 c -22 -40 fcertifications: pfc-freespecifications: weight: 400.0 G