There was a Contigo bottle a client had left at the shop, languishing in the basement for well over a year. My Sigg bottle cracked and leaked, and I needed a new bottle. I kindly adopted this poor, abandoned one. But I needed a way to carry it. So, naturally I made one.
Fairly straightforward. Took some 3" webbing I had, sewed a 2" strip down the front and another one down the inside back, PALS webbing along the back, a Duraflex Spring Release Buckle on the front, a 1" strap on the top, a cord lock at the bottom on the back and then threaded bungee cord through the whole thing.