Lanpet 2018 Pet Travel Carrier Bag Backpack Dog Cat Sling Carrier Bag Reversible Shoulder Bag S01 1.Made of Oxford cloth, which has good breathability 2.Durable and machine washable 3.Able to hold the whole pet and just keep the head outside, making your pets enjoy sunshine and fresh air 4.With a hook inside and adjustable strap with buckle: safe and firm 5.Three sizes availble: S23.4""/60cm 14.43""/37cm 0.55-4.4 lbs, M24.18""/62cm 16.38""/42cm 4.4-6.6 lbs, L24.80""/64cm 17.55""/45cm 6.6-8.8 lbs