Nathan Speed 4RFeaturing four 8 oz. flasks with Race Cap, the Nathan Speed 4R offers generous capacity for your hydration or gel needs. The limited-stretch, VELCRO® waistbelt provides a comfortable fit. Molded holsters, front water-resistant pocket, and interior zip pocket offer secure storage. Reflective details enhance visibility in low-light conditions, allowing you to safely wear this storage belt during early morning or late night runs. Waterproof I.D./medical emergency card slot. Waist size: S: 26"-32", M: 32"-36", L = 36"-44". Weight: 12 oz. (.34 kg).