Plenty of space in the main compartment for a yoga mat and other larger items. Inside the backpack, there is a fastening strap for the yoga mat to prevent it from swinging back and forth. Padded compartment for a laptop up to 14 ". If you need even more storage space, you can easily expand the backpack thanks to the roll-top design. Clip fastening. Zippered side pocket for small items such as phone, wallet and membership card outside the backpack.