Nike Unisex Adult Gameday Brasilia 9.5 Training Backpack [24L]
The medium size is a nice touch, giving you room for your wallet, phone, and keys without extra weight.
Nike Brasilia 9.5 Backpack Medium 24L Black/White DH7709-010
The medium size is a nice touch, giving you room for your wallet, phone, and keys without extra weight.