200g Thinsulate Insulation Comfortable Waterproof Easy to Slip On Extra Thick Outer Sole Breathable Molded Footbed with Arch Support Performance Stretch Midweight Polyester Spandex Scent-Factor Technology Moisture Wicking Technology Built-in Heel Hooks Comfortable Flatlock Seaming WARNING: This product can expose you to chemicals including Toluene Dissocyanate, which is known in the state of California to cause cancer, and Toluene which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov