Osprey Fairview 40+15 liter
This backpack is designed for female posture and is so comfortable! This was my first ever backpack and I carried it with me through Southeast Asia for 5 months and my friend borrowed it for her 3 month trip too. Even after all the traveling, the bag is still in very good shape and barely has any scratches. The backpack itself is 40L and the daypack is 15L. The daypack is attached to the front which you can unzip. You can also unzip the daypack and clip it to the front if you'd like to evenly distribute the weight. It has a clamshell opening, which makes it so easy to pack and find everything.
All features
Lightweight
shoulder strap hiding compartment
Detachable daypack
Two front compression straps
Backpanel to put away the waist and shoulder straps
Laptop compartment that fits a 16 inch laptop in daypack
Interlock zippers
Compression straps
Clamshell opening
Durable
Carry on size
The bag has two padded handles, one on the side and one on the top. One of my favorite features of this bag is that there's a backpanel that you can unroll, so you can zip up the shoulder and waist straps when you check in your bag! No more loose and ripped straps. There's two small pockets on the front of the daypack, in which fits a small water bottle and a laptop compartment that fits a 16 inch laptop. I do wish the pockets to put in a water bottle was a bit bigger, cause my water bottle kept falling out.