Thank you International Trader for bringing some sense into the discussion. I agree, buy a pair of comfortable shoes, and keep them clean. They stay cooler, and you can throw them out each year.
The RM boots I have seen either squeak when you walk, or require resoling after only 12 months walking on the apron, sometimes earlier. All that for $400.
Save your money and buy houses and land, then you only need thongs to walk on your 100 acres beachfront property, because you retired at 50.