This demonstration video discusses and shows the features of the Finis Hydro Hip Swim Trainer. The hydro hip is the ultimate swimming accessory for those who are looking to improve their swimming ability. Attaches around waist with it´s adjustable waist strap (one size fits all). The Hydro Hip provides resistance training to build power for hip rotation. To increase resistance, two wide angled fins are positioned on the side for increased resistance training.