1: It’s practical 

Don’t worry about looking too flash wearing a rash guard, whatever level you are. You’ll look more silly with a skin infection. You can always hide your rash guard away under a T-shirt.

2: Keeps you healthy

Women may like scars, but they don’t like rashes caused by staph or ringworm. Besides rashes caused by abrasion (during pummeling drills for example), there’s a lot of bacterial infections flying around any gym. And the only good thing about them is when you get to tell the doctor you ‘train in full contact MMA.’ Long-sleeved rash guards are more likely to prevent infection, but they’re warmer to wear.

3: You’ll get tapped out less 

Opponents can’t grab a rash guard as easily as they can a T-shirt.

4: Less sweaty 

Most MMA rash guards have ‘wicking’ properties that draw sweat away from your skin. Some new pieces like Sprawl’s Repeller also repulse any of your training partners’ sweat that might get on the outside. 

5: It’s cooler 

Rash guards are made from ‘breathable’ fabric that’ll help you stay feeling fresh. Wash it after every training session though, just like your T-shirt.

6: Versatility 

Most MMA rash guards can be used for running as well. Watch out for rash guards intended for water sports though; these normally boast sun protection factor and keep you warmer rather than cooler.

7: It’ll fit you fine 

So you may not have the physique for a skin-tight rash guard. No fear: loose-fitting varieties are on sale too.