Comfortable, Sturdy, Portable. The Berlebach Hydra Observer's chair is a must have for those long observing sessions. The solid workmanship guarantees relaxed, comfortable viewing and an optimum viewing posture. Features a fully adjustable seat, ergonomic seating position and padded leather covered seat. This lightweight chair is easy to fold and transport to your observing site. At just under 10 lbs it will hold up to 220lbs.