DOUBLE EXPANDABLE - Two expandable areaa allows more room for pets to move around during travel and allows more air circulation SHOULDER STRAP - Wide adjustable shoulder strap for comfortable carrying. Integrated short leash prevents pet from jumping out PREMIUM QUALITY - Crafted from premium materials for maximum durability DIMENSIONS - Approved for most domestic airlines. Please check airline for carry-on rules. Carrier folds flat for storage. Suggested maximum pet weight of 15 pounds.