For centuries boxing and Muay Thai have been perfecting their training and technique. MMA largely takes it’s striking training from these two. Slight adaptations have been made to account for things like the 5 minute rounds and the probability of a grappling exchange. Other wise the training for an MMA fighter and a Muay Thai fighter when striking is VIRTUALLY identical.
That said the vast majority of MMA gear a fighter comes across is striking related. It’s because the striking game is inherently less controlled and more damaging than grappling, Let’s take a look at the basic protective gear a fighter should have when training their stand up game.