PET LIFE 'Venta-shell' Airline Approved Perforated Dotted Collapsible Military Grade Fashion Designer Pet Dog Carrier Crate, Navy Blue/White Features military grade hard shell Nylon centered shell Fully collapsible to 3.5 Inches thin; Middle shell fully zips off as both outer shells collide and zip closed Side zippered mesh entrance Features a built-in leash holder inside and comes with over-the-shoulder straps