I can say one thing stay away from the fly-tech truely a piece of $hit...Bought mine a year ago and have sent them back twice for replacement because of seams leaking..

I have a few friends that have cabelas guide wear waders and love them..I don't know anyone with simms but it sounds to me by some of the people on here that do have them, they are good as well...TM
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If ya can't run with the big dogs stay on the porch!