For people with big goals for big mountains, the Gregory Packs Petit Dru Pro backpack is an able companion. Extraordinarily tough and laden with useful features, the Petit Dru Pro will exceed your expectations. Professional mountaineers are tough on their gear, which is why this pack is with this elite group of athletes. The Petit Dru Pro's narrow profile, combined with our beefiest suspension system, and top-of-the-line materials, make it the logical choice for expeditions, guiding, and daily use in serious backcountry. The pass-through pocket provides easy access to every corner of the pack. This low profile design also improves the Petit Dru Pro's performance on technical climbing or ski trips.
| Size XS | 4400 CU IN / 72 L 7 LBS. 0 OZ. / 3.17 KG |
| Size Small | 4750 CU IN / 78 L 7 LBS. 4 OZ / 3.29 KG |
| Size Medium | 5200 CU IN / 85 L 7 LBS. 8 OZ. / 3.40 KG |
| Size Large | 5700 CU IN / 93 L 7 LBS. 12 OZ. / 3.51 KG |
Pack Frame Size
Your correct frame size is found by measuring your torso from the seventh vertebra (the big bump where the shoulder slope meets the neck) down the spine to the point in the small of your back which is horizontally level with the top of your hip bones (iliac crest). To find the iliac crest, use your fingers to trace the hip bone upwards until you can feel the point where the top edge of your hip bones curve inwards, on the side of your hip, creating something of a shelf. Holding your finger on the seventh vertebra, measure down your back to the point in the small of your back level with your iliac crest. The measurement is most easily obtained using a string or a cloth tape and help from a friend. This is your torso length, and using it, you can now select the correct frame size.
Fit your Gregory backpack
Your correct frame size is found by measuring your torso from the seventh vertebra (the big bump where the shoulder slope meets the neck) down the spine to the point in the small of your back which is horizontally level with the top of your hip bones (iliac crest). To find the iliac crest, use your fingers to trace the hip bone upwards until you can feel the point where the top edge of your hip bones curve inwards, on the side of your hip, creating something of a shelf. Holding your finger on the seventh vertebra, measure down your back to the point in the small of your back level with your iliac crest. The measurement is most easily obtained using a string or a cloth tape and help from a friend. This is your torso length, and using it, you can now select the correct frame size.
| X-SMALL | 14 to 15 1/2 |
| SMALL | 16 to 17-1/2 |
| MEDIUM | 18 to 19-1/2 |
| LARGE | 20 and up |
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