Briefcase With Trolley Sleeve

Head layer cowhide.
The bag holds a 15.6-inch laptop a book, a mobile phone, an umbrella and other amsll itams.
Internal structure: 2 main pocket, 1 interlayer bag, 1 zipper pocket, 4 Card solt, 3 pencil case, 1 storage bag.
Capacity: clothing, ipad, wallet, books, belt.
Measurements：W 16.5″(42cm)×H 12.4″(31.7cm)×D 4.13″(10.5cm)
Weiht: 1.7kg.
Shoulder strap length: 140cm.