AlcottAdventure Explorer Boots, Large, Grey

what size dog does this fit?

My dog's front paws are 2.15 in and the hind paws are 2.35 in. He is 49 pounds. What size should I buy?

How many boots in each order?

where are these dog boots manufactured? country and or company that actually makes these for the company Alcott to put their name on them?