Howler 2-Rider Towable Tube by Wow Watersports®. The Howler 2 Person Towable is an upgraded version of one of top sellers - The Coupe Series. We took the popular design and leveled it up with a full heavy-duty nylon cover for added durability. Made with one large cockpit for up to 2 riders and a speed drop bottom, this makes for a simple, fun ride that will make the riders howl with excitement without adding too much drag to your boat. When you're done for the day you can use this towable as a relaxing floating lounge that will be just what you need after your exciting ride.