No, bags, suitcases, and travel bags with a capacity greater than 10 liters are not allowed inside the adidas arena, whether in the lockers or inside the venue.
Finally, handbags or shoulder bags with a capacity less than or equal to 10 liters, after pat-down and inspection, may be accepted and can be left in the locker (free of charge).
Other items are also prohibited inside the adidas arena; we invite you to check the list.
Here is the access map of the adidas arena, where you can locate the locker: