Aquilo XT specs

Small Medium Large  X Large
Weight: 47 oz./1332 g 49 oz./1389 g 52 oz./1474 g 54 oz./1531 g
Max comfortable load (lbs.): 45 lbs.

Volume: Small Medium Large X Large
Main compartment: 3024 in³/49.5 L 3400 in³/55.7 L
Front Pocket: 478 in³/ 7.8 L 588 in³/9.6 L
Tall Side Pockets (pair): 638 in³/10.4 L 662 in³/ 10.8 L
Bottle Pockets (pair): 442 in³/7.2 L 442 in³/7.2 L
Hip Belt Pockets (pair): 96 in³/1.6 L 96 in³/1.6 
Total Volume: 4678 in³/76.5 L 5188 in³/84.9 L