This navy pool holds its own shape with no pump involved. Eight stable triangular supportive side panels sit at a 40 degree steady angle around the perimeter, bracing the wall as a rigid structure that will not slowly deflate through an afternoon the way an inflatable ring does. Filled to a 12 inch water level it takes 238 gallons and supports 881 pounds, and the widened bottom leaves up to eight people ample splashing space inside the 99 by 52 by 19 inch footprint.That wall is a 5-layer composite PVC. The layering is what makes it tear-resistant and wear-resistant at the spots that take punishment, namely where heels drag along the floor and where toys knock against the sides. Four repair patches ship in the box, so a puncture is a quick fix at home instead of a reason to replace the pool.Draining runs through three separate outlets, two set into the base and one in the side wall, which pulls the water out quickly rather than leaving a shallow layer to bail by hand. A drain hose is included to carry the outflow clear of the setup area.Storage is where the non-inflatable design pays off a second time. The pool folds down to 22 by 21.5 by 5 inches and weighs 43 pounds, small enough for a closet shelf or the back of a car on camping trips. Out of swimming season the same basin works as a pet bathing tub, a sand box, or a ball pit for indoor and outdoor fun.