Texsens Pet Carrier Backpack with Window Blind for Small Cats Dogs, Ventilated Design, Safety Straps, Buckle Support, Collapsible, Designed for Travel, Hiking, Winter Outing, Outdoor, Go to VetNew Upgraded Pet Travel Backpack: Three side was made of PVC mesh, and add curtains to prevent your cats dogs from sun, provide a safe privacy and reduce pet's stress response to external things when travelling. You can also roll up the front curtain and draw the curtains on both sides into a half curtain pattern to increase breathability Pet Backpack Carrier Dimensions13" L x 10. 63" W x 16. 54" H. Perfect for dogs up to 14 pounds, or cats up to 17