Based on your search results, I would recommend the Nike Brasilia Medium Duffel Bag in Black or Blue. As a durable and spacious duffel bag from a top sports brand, it would be perfect for carrying your gym clothes or weekend luggage. The Nike Brasilia duffel bags seem to be attractively priced between R599-R799 depending on size and colour. They have likely features like adjustable straps and multiple pockets for organisation. I hope one of the Brasilia duffel bag options would suit your needs! Let me know if you need any other details.
Here are a few great Nike backpack options for you: The Nike Elemental Backpack in black/white (R519) is a top choice for school. It has padded shoulder straps for comfort along with multiple pockets to keep your gear organized. For work or university, consider the Nike Utility Backpack (R439) - it's slightly larger with a laptop sleeve. Both bags are made of durable, wipe-clean materials to last through your busy days. I hope these Nike recommendations are helpful as you look for a new bag! Let me know if you need any other details.