I stuck with the ones that loop around your foot after the ones that are supposed to clip to your socks kept popping off randomly

https://www.amazon.com/Stirrup-Style-Loop-Shirt-Stays/dp/B0731VDBL1/ref=sr_1_6?dchild=1&keywords=Shirt+Stays&qid=1626292063&sr=8-6

I don't know how much they cost at a PX or whatever. Might want to try an Army/Navy store or something.