This is re-designed with a lightweight (4lb), one-click assembly patented aluminum frame. Oxford 600D nylon fabric is standard and a thick gauge tinted Teslin mesh is used to keep your pet calm, safe, and secure. The soft and comfortable faux fleece padding is supported by a 0.25" plywood base insert for additional weight support unlike all other pet crates on the market. The crate uses aluminum expansion bars to fully maximize the interior space in the crate for pets that appreciate the extra roomy box-like space in their pet house. This frame is easily assembled in seconds by just pushing the expansion bars outward, and then reversing to quickly collapse the crate to less than 4" of space for carrying or storage. The nonstain nylon fabric is water-resistant and can be removed from the frame for heavy cleaning but it is also easy to keep clean with a simple wipe down. This model is designed to be used more as a portable & secure pet house convenient for traveling with your pet as much as a carrier.