The chassis/main body itself is fine - spacious, airy & supported the cat well.  •Although the 'straps both large & small' on the back needed some compartment to store them in. The straps kept dangling when not in use. •And the wheels could you use some 'rubber lining' to muffle the noise whilst pulling the carrier along the cement sidewalks.  Otherwise I am pleased with this product.  Thank you ...