Is this duffel big enough for a weekend trip?

The large zippered main compartment is sized for a couple of days of clothes and toiletries. It is a soft bag, so bulky items compress around what you pack.

Does it have a shoe compartment?

No. There is no separate shoe or wet pocket, so pack shoes in a bag or use one of the zippered front pockets.

Can I carry it on my shoulder?

Yes. It has an adjustable non-slip shoulder strap, plus a padded handle wrap for carrying it by hand.

What does the hard bottom do?

The permanent hard bottom keeps the bag's shape when loaded and holds contents off wet or rough ground. It also gives the duffel a stable base when set down.

Does it hold a water bottle?

There is a mesh bottle pocket on the front, sized for a standard water bottle.

Is it good for the gym?

It works for gym gear: the main compartment takes clothes and shoes, and the front pockets hold keys, phone and small items. It lacks a ventilated shoe section, so damp gear stays in the main bag.