Flame Resistant FR Cotton Long Sleeve Work Shirt - MCR Safety FR Clothing powered by Summit Breeze® Technology is the wave of the future when it pertains to protecting the workforce against flash fire and arc flash hazards. This product provides superior protection by incorporating our patented triple vent technology into our coveralls and shirts which protects the user on multiple levels. Data from the American Burn Institute proves inhalation injury increases the mortality rate from flash fire significantly. The Summit Breeze® vented design keeps the wearer cooler, decreasing the chances of heat stress while also redirecting a majority of the off gas away from the breathing zone during a flash fire or arc flash event.  If you are looking for the best flame resistant clothing, look no further than MCR Safety!