First Lite is direct to consumer, not sure of Kuiu. I have ordered quite a bit of First Lite in the last few years, I really like their gear, well made and fits good. I expressed concerns about fit, they said they would provide a return shipping label if the fit was not correct, that was two years ago, maybe their policy has changed...I don't know but I would definitely ask. I am 5'9", 210 lbs, size large fits me well for pants and jackets and base layers, I need XL in their gloves and I don't have what I consider big hands, if you have big meaty paws, I am not sure they would have gloves for you.