O'Brien Challenger 2-Person Towable Tube, Yellow

check dimensions before a purchase, it is quite large.This has a new style fill valve, I considered returning it but deemed not worth the trouble

The zipper inside broke after one use. For $350, it shouldn’t have done this. Now we can’t use it. Such a shame!!!!

So far so good. Pretty big. With 2 people it's stable and hard to flip. It's only a 2 person but we put 3 kids in it (right up to the weight limit) and they liked it. The bottom, back rest, and main tube blow up separately. It's not just a cheap inner tube with a canvas cover. Seems well made.