iBox & iBox the Big One Our iBoxes are practical and very versatile. Thanks to a tight closure, they are almost impermeable to water and odors. Store e.g. dry clothes, food, carp bags or fish feed in the iBoxes. Made from nylon reinforced plastic, they are freezer proof and very robust. Optimum use of space - stackable - extremely resilient! A special feature of the iBox the Big One is an additional insert (7 liter capacity) in which you can store Carptrack Additive or mix Stick-/Method Mix.