An ice bath tub is a container designed to hold cold water for controlled cold-water immersion. Portable ice bath tubs may use insulated PVC, nylon fabric, foam layers, supporting poles, inflatable chambers, or folding frames.

Shipping cost is a major concern for buyers sourcing cold plunge products in bulk. Traditional rigid tubs take up large container space, increase warehouse pressure, and often raise freight costs before the product even reaches the market.