A great everyday pack with excellent performance, fit, and functionality. ; Attached saddlebags with lightweight streamlined, go-fast shape. ; Weight-forward saddlebag design for ideal load-carrying position. ; Trail-savvy details like waterproof zippers, high-visibility reflective trim, external gear loops, and durable construction. ; Comfort-fit Web Master Harness frame ensures good structure, stability, and load dispersion. ; Five-point adjustable fit and extended size range to accommodate dogs of all sizes. ; FIT TIPS: The pack's harness should have an all-around snug fit for a stable load and to prevent movement or shifting of the saddlebags. Be sure that each saddlebag has an equal and balanced load. In-between sizes?: Choose the smaller pack for a lighter load and less bulk. Please do not use saddlebag capacity as your only sizing consideration; use the girth fit for best results. ; Sizing : Measure your dog's girth: measurement around the widest part of the rib cage. &#8226; XXS: 12 - 19 in / 30 - 48 cm. &#8226; XXS Capacity: 122 cu in / 2 L. &#8226; XS: 17 - 24 in / 43 - 61 cm. &#8226; XS Capacity: 305 cu in / 5 L. &#8226; SM: 21 - 30 in / 53 - 76 cm. &#8226; SM Capacity: 549 cu in / 9 L. &#8226; MD: 26 - 36 in / 66 - 91 cm. &#8226; MD Capacity: 732 cu in / 12 L. &#8226; LG: 32 - 48 in / 81 - 122 cm. &#8226; LG Capacity: 976 cu in / 16 L.