These babies are rugged and designed for tough use. If you're doing the Iditerod or little Fluffy won't go outside if it's chilly, these are the boots for you. And Fluffy.
And here's a tip: Don't put the boots on and sit around and laugh at your dog because he/she is freaked out and does crazy things with their legs. Put them on and go for a walk. If you stay true to this, you can cut down the probability that you will need to return them by 74.125300%.
Fasten Velcro straps before washing. Machine wash cold, on delicate cycle using provided wash bag. Lay flat to dry. Do not bleach, do not dry clean.
To get a paw measurement have the dog stand with their paw on a piece of paper. Ensuring the dog's weight is on the paw, draw a line to the left and right of the widest part of the paw. Now you can simply measure the distance between the two lines to get a paw width measurement.