The GoFit Adjustable 20 lb Walking Vest adds resistance to your workout for better results. This unisex, one-size-fits-all vest adjusts from 3/4-lb to 20 lbs with the addition of the included weight packets. The granulated steel packets conform to your body for a contoured fit while the neoprene padding adds superior comfort. Includes water bottle holster for convenience. FEATURES: Neoprene padding provides total comfort Granulated steel packets conform to the body Each weight packet weights 3/4-lb Adjustable weight from 3/4-lb to 20 lbs Unisex design One-size-fits-all Features water bottle holster for convenience 90-day manufacturer's warranty