This is a finely made pair of pants with great material. But they're very, very large throughout the thigh and legs. and they're very tall. It's a lot more material than I expected for this fit; a very substantial pair of pants. the baggy fit might be historically accurate, but be prepared to order your normal size waist and pull the pants up super high above your waist. Maybe even hem them up an inch.
1950s M-51 Field Cargo Trousers