Gregory Z 55 Backpack Size Chart
Small Medium Large
Torso Length (in) 16-18 18-20 20-22
Capacity (cu in) 3112 3417 3722
Product Weight 3 lbs, 13 oz 3 lbs, 15 oz 4 lbs, 3 oz
These are general guidelines only, sizes are not guaranteed. But no worries, since at SunnySports we offer our exclusive PFF Guaranty