To provide a legless chair which never tires out a person even in long-time seating and uses a body-friendly material, and which prevents the exposure to ultraviolet ray/rain/snow when moving from a house to a vehicle in a wheelchair, or a bad effect of ultraviolet ray on the skin of a person sitting outdoors for a long time in athletic festival watching/sea bathing/hiking or the like.

A legless chair body has a movable sunshade two-step pipe 2 and an UV-cut cloth laid over the pipe. By changing the pipe angle, ultraviolet ray or sudden rain can be prevented even when sitting in the wheel chair. Although the knees are generally bent at 90°in the use of the wheelchair, the legs can be made comfortable by adjusting the angle by a seat extension part adjuster 9. Since the legs are tired when sitting for a long time, the legs can be relaxed by extending a seat extension part 3. Accordingly, ultraviolet ray/rain/snow and the like can be prevented by using such functions, and the form can be changed according to the using place.