There are 2 different Backpack in the listing
Capacity: 20-35L with 3 large Zippered Compartments
No 1: Anti-theft with Zipped pocket on the back
Size: Height 43 cm Width 25 cm Depth 18 cm [ Maximum dimensions] Weight: 0.95 kg
Ear phone and USB are on the side of the bag.
No 2: Anti-theft Plus version with more reflective stripes and larger size compare to No.2.
Size: 46 x 31 x 18cm