Transparent Bubbles In The Front + Stretch Back. This Cat Backpack Increases Your Pet'S Visual Space With A Transparent Hard Shell In The Front, Provides More Space And Playtime Inside With The Expandable Back Panel. The Real Ever-Bigger Expandable Cat Backpack Breathable Bubble Cat Backpack. 9 Additional Ventilation Holes Around This Backpack And Two Side Windows For Excellent Air Circulation Inside. The Extended Back Panel Is A Giant Tent Bed For Your Furry Friends To Enjoy Outdoor Time With Nature And The Sun Without Feeling Trouble In The Backpack, The Best Ventilation In The World. Eco-Friendly Materials Environmental And Non-Toxic For Cats Lightweight And Super Wear-Resistant Shell Perfect Against Pet Bites And Scratches. The Whole Backpack Weighs Less Than 1.4Kg Only, Suggested For Cats 0.5-5.4Kg And Small Dogs 0.5-4.5Kg To Leave Enough Room Inside For Turn Around. Roomy Backpack For Your Pet To Lie Down And Stand Up. Approved By Airlines Two Ways To Carry It. Portable And Portable Backpack With Adjustable Chest Buckle For Travel And Hiking, Outdoor Activities, The Real Travel Backpack For Cats. This Backpack For Cats, Great Carrying Bag For Cats Cat Offers Protection For Your Furry Friends And Adheres To Amazon'S Return Policy.