The Powersuit is a must for those who want to take their training to the next level. This training suit is versatile enough for on land and/or in water conditioning. The weighted vest comes with 4lbs of weights and is able to hold resistance weighted bars up to 20lbs. The weighted shorts come with 4lbs of weight and can house resistance weight bars (4.5oz each) up to 12lbs (for an additional cost). The Power Suit is constructed out of Stomatex. Neoprene (a synthetic rubber) demonstrates superior tensile strength and elasticity offering significant advantages over plastice foam materials and making Stomatex ideal for close contour applications where body movement must remain unhindered. The number one choise of Olympic and Professional Athletes. Available in Maen's or Women's Sizing (XS-XXL). PLease specify Men's or women's and size at time of order. Also, please specify if you would like the product to come with the additional weights.