Stowage…and flotation – the name says it all. Float bags provide kayakers with ease of rescue if they swim, and ours give paddlers the added benefit of a place to keep dry gear. The Salmon is made to fit in a wide range of boats, but was designed for a self-support winter Grand Canyon trip using the Liquid Logic XP 10. The Salmon is wider and shorter than the Futa, with a larger opening and more volume.