Plus Size fit is comparable to 2x-6x in apparel sizing and the torso sizing remains consistent with all other Gregory products. See our Fit Chart for complete fit dimensions. Plus Size packs are designed with extended length shoulder straps and hip belts, plus additional fit revisions to accommodate larger body shapes and sizes. VaporSpan ventilated backpanel with specialized mesh panels to provide anatomical support Comfort cradle hipbelt with seamless design for hotspot free comfort Hipbelt zippered pockets large enough to fit most phones Padded shoulder straps with smooth surface, breathable mesh for close to skin comfort