CAT BUBBLE BACKPACK, DURABLE MATERIAL Semi-sphere designs allow your pets to enjoy the scenery and side entrance allows pet inside to stick her head out or helps you to feed them which provide maximum accessibility. Item Dimensions: 14.6” L x 10” W x 15” H. Suggested Weight: 0-16lbs for small to medium size cats and puppy. Most Airline Approved under seat. Important: Please Check your airline requirements before traveling.