Scott Hemmingwrote a review of Ruffwear Bark'n Boots Polar Trex - Set of 4 on January 5, 2017
Familiarity: I've used it once or twice and have initial impressions
Just tried the 4xs on our 19 pound Welsh Terrier seem to fit fine. The 3xs were too big. We tried some off market fleece booties/socks, but kept losing them. These are more sturdy for sure with the velcro and zipper. Hoping they stay on.