I highly recommend Perfectfit fantastic products and incredibly well-made and of amazing quality as well. The customer support is very knowledgeable, friendly and helpful. The website has helpful fitting, and size guides and mini videos to watch and help My dog loves her harness and is comfortable in it and moves great in it which is the most important thing. I will say if you want the next-day delivery make sure you order before 12 noon otherwise it will come the day after the next day but you have still paid the postage for next-day delivery (I learned this the hard way my fault)