Piko 28+7L Backpack
Shoulder strap type
Coated mesh type is lighter, significantly more breathable and sternum buckles are removable.
Foam type (+10€) has 3mm evazote sandwitched between fabric and 3d mesh.
Hip belt size
Measure your hip circumference and follow the below info
S - up to 95cm
M- up to 110cm
L- up to 125cm