Portable hot tub…how cool (or should we say, hot!) is that! The Original Nomad Collapsible Tub and Water Heater Coil Combo is a vinyl-sided circular tub that fits inside a 14″ x 16″ 30″ duffel bag for transport. Once you’ve assembled the tub, the stainless steel heater coil can be connected to the tub, and then the water can circulate and warm to about 100 degrees in 2 to 3.5 hours, depending on the outside temperature. It’s large enough to seat 4 adults. Imagine coming back to your campsite after a long hike and soaking in your own personal hot tub. Very relaxing!