OXDOG hyper thermo padel backpack

It has a main compartment for storing your essentials and up to 2 rackets. It has the advantage of being thermally insulated, so you can keep your belongings cool. A second compartment stores your clothes and towels.
You can also separate your shoes from your other belongings in a special ventilated pocket on the underside of the bag. There's another small pocket on the front, and a pouch on the side for a ball tube, for example.

As for comfort, the adjustable shoulder straps are padded for comfortable, practical carrying, and a handle makes it easy to hold.