Belt sensifit belt customisable length pockets amp compartments 1 zipped external pocket external elastic strap for gels carrying system 4d bottle holder locking flask lace hydration flasks included 2200ml 7oz fabrics elastic power mesh 3d mesh 70d nylon ripstop waterproof 500mm elastic jersey flat mesh pack weight lb oz 5 oz pack weight g 150 dimensions 45 x 8 cm