The Blackfoot series is the bottom model for Simms so it's just small, medium, large, x-large...

the medium and the large are the same except the medium has a smaller girth for 39-40".

guess the large is the best fit with the limited sizes for that model now that i take a 2nd look at it all.

glad to hear you guys like the simms and korkers; sounds like i should be a happy camper with that set up. thanks for putting my senses at ease