Yes, you can retrofit any backpack with a GURTIES chest strap! The GURTIES chest straps can be used universally and fit almost any backpack. It doesn't matter whether it's a hiking backpack, a school backpack or a bicycle backpack - the GURTIES chest straps can be attached quickly and easily. They not only offer additional stability when carrying the backpack, but also more comfort and better weight distribution. With a chest strap from GURTIES, every backpack becomes an even better companion on all adventures!