Jade 28 from Gregory has good support and can easily be adjusted to fit your back perfecly.\nIt has also a good ventilation that makes it wearable on every season and makes it very comfortable to wear.\n\nBottom side compression with pass through for uninhibited use of the side mesh pocketZippered top pocket with reflective webbing attachment loops for finding your pack at nightCustom Comfort Grip molded zipper pullsSternum strap buckle with integrated safety whistleLining: 135D smooth polyesterBottom: 630D High Density Nylon / 420D Durable NylonUpper: 210D Honeycomb Cryptorip HD Nylon and 210D plain nylon Gregory Women's Jade 28 Ethereal Grey | Buy Gregory Women's Jade 28 Ethereal Grey here | Outnorth