A few online reviews about.
If you are considering using the Volt 75 for carrying heavy loads over 40 pounds (18KG), which would be a desirable goal for a pack of this volume, think again. The hip belt on the Volt 75 is not wide enough or padded enough to go heavy. I’ve tested the Volt 75 extensively with a wide range of loads and the comfort level deteriorates significantly once you start to approach 40 pounds (18KG).
https://sectionhiker.com/osprey-packs-v ... ck-review/https://www.outdoorgearlab.com/reviews/ ... ey-volt-60For the volt 60 but says its comfort struggles above 18kg.
http://www.backpackgeartest.org/reviews ... 0M%20Kidd/This guy likes his for big loads but didnt carry it heavy for very long.
If you like osprey and looking for light weight and big loads maybe something like the AETHER PRO 70. Its a specialist pack which has a robust frame/hipbelt designed for bigger loads but keeps its light weight by moving to lighter (perhaps ultimately less durable) materials and less bells and whistles. Though likely fine for most.
https://www.osprey.com/us/en/product/ae ... 0_565.htmlhttps://www.outdoorgearlab.com/reviews/ ... her-pro-70Skurka likes it as well
https://andrewskurka.com/long-term-revi ... -backpack/Just curiously, what environment and how long are you going for that will be requiring up to 24kgs weight to be carried?