Effortless warmth meets winter-ready performance in the Siren 4 Thermo Pull On WP. Designed with Primaloft insulation, faux fur lining, and Vibram Icetrek traction, it keeps feet cozy and secure in snowy, slushy conditions. The waterproof shell and easy-on design make it the perfect grab-and-go boot for cold commutes and casual trail days. | Merrell Siren 4 Thermo Pull On Waterproof Boots | Size 6