The LensCoat Jobu BWG-J3K (JR3) head covers offer your valuable equipment some protection from scrapes and bumps, preserving its appearance and resale value. They also help break up the shape, making it less noticeable to wildlife. The Jobu BWG-J3K (JR3) head covers are made of closed-cell neoprene and also act as a thermal barrier, helping to protect your hands in hot and cold temperatures.