HALYARD* Medium Weight Tri-Layer Over-the-Head Isolation GownHALYARD* Over the Head Isolation Gowns are designed to let you slip it over your head and don it in seconds. When your task is done you can remove it just as quickly. Made of cool and comfortable SMS fabric generous sizes give you plenty of room to move. It has an open back panel that keeps the gown intact through your daily activities and provides ventilation for added comfort. The thumb hooks are a key feature of this gown. Slide your thumbs into