What is the strap on the back of a backpack for?
What is the strap on the back of a backpack for? Luggage strap / pass-through — Travel backpacks usually have a wide strap on the back panel that allows you to attach it to the handle of a rolling luggage. It's a very convenient feature, but just be careful if you're using a large backpack.
Should backpack straps be tight or loose?
Choose a backpack with snug-fitting, comfortable shoulder straps. Make sure the straps don't rub against your neck. Check that there is no space between the straps and your shoulders when they are adjusted to fit.