Timbuk2 Proof Messenger Heirloom Cotton Canvas Imported Laptop pocket fits 13 inch MacBook and iPad Laptop pocket fits 15 inch MacBook and iPad Internal organizer for pens, phones, and other small stuff Removable crossbody strap for cross-body stabilization Luggage: Messenger Bags Genuine leather binding and trim Internal organizer for pens, phones, and other small stuff Removable crossbody strap for cross-body stabilization