Ice Barrel 400 Cold Plunge TubThe Ice Barrel 400 is an effective, compact and durable tool that makes it easy to incorporate cold therapy into your wellness and recovery routine. Weve designed our product to fit most body types and almost any kind of home, gym or apartment. Details Effective upright design The Ice Barrel 400 allows you to stay in a comfortable natural upright position. It also lets you easily submerge as much of your body as you want, even dunking completely.