Tom Holland would be the first to tell you that he's incredibly lucky to be playing everybody's favorite wall-crawler. However, that doesn't mean protecting the streets of Queens is an easy job, especially when you have to deal with a superhero costume that's driving you crazy. In a 2016 interview with Variety, the actor admitted that the Spidey-suit is "not the greatest thing" comfort-wise, and that's probably because it's so hard to take off when you need to relieve yourself.
Speaking with Shortlist, Holland confessed the only thing he wears under the costume is a thong, so whenever he needs to visit the restroom, he has to completely undress. On top of that, he originally had a difficult time staying hydrated. In order to keep him supplied with water (after all, the mask doesn't have a mouth), the crew had to stick a plastic tube through a hole in the eye socket, allowing Holland to sip water between takes.
Of course, that would just start the whole bathroom scenario all over again. But the outfit has caused Holland more than just mild discomfort. Underneath the mask, he's wearing an "egg-shaped helmet," one that occasionally hampers his vision—and got him into trouble during one fight scene. According to Holland, he was filming with a stunt double who was wearing a "massive gauntlet" (so we're assuming he was doubling for Shocker), and when the guy threw a punch at Tom's head, the actor didn't see it coming.
As Holland put it, "He punched me in the face so hard, like you wouldn't believe." But hey, with great power comes great responsibility, and with great acting opportunities comes the chance of getting socked by a supervillain.