Can mount directly to a single cylinder using dual GripLock tank bands or a single tank adapter. Can accept a WTX Back Plate for heavy loads such as twin steel cylinders. Multiple grommet settings on the waistband allow the attachment of the SureLock™ weight system. Open shoulder design allows diver to add or remove hardware for total customisation Made from rugged 1050D Ballistic Nylon. Removable crotch strap made of 2” (5cm) soft webbing. 6-two inch stainless steel D-rings (2, angled, on shoulders, 2 on the hips and 2 on the crotch strap). 6-one inch stainless steel D-rings along the sides accommodate light canisters, argon bottles or other accessories. 2-one inch stainless steel D-rings along the lower back are for marker buoys, reels or other accessories. Removable back pad. Heavy-duty waist buckle made of stainless steel. Stainless steel tri-loaders distribute the load between the back, waist and shoulders for a great fit. SOLAS reflector airway hold-downs can be removed or repositioned. Chest strap comes standard. Available in 4 sizes: S, M, L & XL. Includes 2ea. tank bands.