Celltei Backpack-o-Pet - Cordura(R) Black - Medium Size Semi-rigid plastic panels give stability and flexibility for airline travel Safety - Zippers with auto-lock device, an inside security leash and car seat attachment feature Discreet design with durable Cordura(R) fabric and black color interior Climate and odor control compartment and feature for small pet water bottle Leak proof and machine washable floor trap set with foam pad for comfort