These things sound awesome. ITS NOT WATERPROOF. I’ll be ready for them! Super great and amazing! In addition to being an incredible space saving solution and functional the design and quality are very nice. He wears a 9. I was impressed with its stability on the water. Once it was finally assembled, it was not even remotely sturdy. I think its designed for short people, otherwise it seems to be good quality and fairly durable. One final thing to mention, the charging female micro-USB port is snugly enclosed within a rubber flap within the control area of unit.