You have pants already, and might like overalls. Why not buy one pair of overalls, and one pair of suspenders? Give them a shot and see how it works out.
One warning about suspenders. The story you are about to read is true. Names may or may not have been changed to protect the innocent:
I have a friend, Ill call him John. We went on a trip down South to do some detecting. One early morning after breakfast we went out to hit the woods. Well John had the call of nature. He grabbed the TP and ran for the woods. After quite a bit of time, John come out of the woods, cursing worse than a drunken sailor. At arms length's was John's suspenders. Turns out John dropped trou, and in his haste forgot about his suspenders. Yup, he dropped a deuce on his brand new suspenders. He refused to throw them out, and instead put them in a trash bag. They were then placed under the Bronco. Well to this day I cant recall if we drove off without them or not. I do know that I refused to allow him to put them in the Bronco, on a blazing hot 100 degree day in Va. .
Among other things that happened on the trip: A broken down truck. An accident in the rental that replaced the truck. Cheap cigars, lousy food and cold beer. Would I do it again? H##L YEA!