This vest has all the features you need in a vest. Photo shown here is for the 20lbs RUNmax model. The weight of the vest does reflect the sizing. Size charts below. Weights can be removed at any time. Offering water bottle holders for long distance workouts, this vest has everything you need from light to heavy workouts. Stick you phone in the phone pocket and go on a run. This vest has got you covered. Keeping the design simple, it is made to be put on and taken off in seconds. A great addition to any workout