Selk'bag Original 4G A new and improved quick-release hand closure system allows for quick entry and exit of the hands. New Velcro straps around the waist provide a comfortable fit and prevent slippage of the bag, while new Velcro straps around the ankles help to prevent tripping, and new Velcro straps on the sleeves allow you to keep your hands free to do stuff Larger nylon reinforcement areas than on 3G on the soles prevents wear and the lateral grips give traction on multiple surfaces, while new tapered knees allow for better bending and baffled construction helps to eliminate cold spots A soft polyester shell with ripstop techology and a water resistant finish (DWR) wraps the wearer, while the insulated hood adds warmth. The thermal collar seals the head and neck to prevent drafts, while exaggerated draft tubes to stop heat loss from around the zippers Double front entry-zippers and a right hip zipper make for quick entry and exit, not tomention access to the fly and pants pockets