These suspenders (braces, if you're British) were the first I've worn is seventy years, and they perform extremely well.  The pin-enhanced clips serve to keep the straps attached to the cloth of the trousers very effectively.  The only complaint is that wearing Aloha Shirts untucked is not do-able.  The same outfit makes a set of velcro adjustable types that can be worn right on the skin, so that is at least an option.