@Sjarvie I have the Osprey Sirrus 24, and I love it. I like having all the different pockets on it. I don’t use a hydration pack, though, so I’m not sure if you lose space once a hydration pack is put in. I use Nalgene bottles with tubing attached so I can drink without taking off the pack. I’m only 5’2” though, and with the pack extended as far as it will go, the hip belt barely comes down to my hips. If there is a way you can wait to try it on, that might be best. I find the pack really comfortable for day hikes about the same mileage as you’re doing.