An embodiment is a lightweight, packable seat that includes a seat platform, two shafts for support, straps with respective buckles, or similar, that secure the seat to a vertical object, such as a tree. The seat may be made of a lightweight flexible material that is held in a stiff orientation that extends outward from the tree through coupling to the upper strap at the proximal end of the seat and the shafts at a distal end of the seat, where the shafts project downward toward a proximal location at the tree at the lower strap. Use of the lower strap means that the shafts do not contact a ground surface, thereby providing stability. The shafts may be made of composites or aluminum, for example, such that the entire weight of the seat may weigh just a few ounces while exhibiting strengths and stability.

A folding crutch chair includes a pivot base unit and at least three support leg units. The pivot base unit has at least three mounting slots angularly spaced apart from one another about an axial line, and at least three pairs of joint portions respectively formed in the mounting slots. Each support leg unit includes a pivot seat, an outer tubular piece, and an inner tubular piece extending telescopically relative to the outer tubular piece. The pivot seat has a pair of pivot portions respectively and pivotably connected with the joint portions such that each support leg unit is rotatable relative to the pivot base unit. The support leg units are shiftable between a folded state and an unfolded state. The length of the support leg units is reduced when folded so as to facilitate packaging, storage and carrying.

A folding crutch chair includes a pivot base unit and at least three support leg units. The pivot base unit has at least three mounting slots angularly spaced apart from one another about an axial line, and at least three pairs of joint portions respectively formed in the mounting slots. Each support leg unit includes a pivot seat, an outer tubular piece, and an inner tubular piece extending telescopically relative to the outer tubular piece. The pivot seat has a pair of pivot portions respectively and pivotably connected with the joint portions such that each support leg unit is rotatable relative to the pivot base unit. The support leg units are shiftable between a folded state and an unfolded state. The length of the support leg units is reduced when folded so as to facilitate packaging, storage and carrying.