IFR suits are a type of personal protective equipment (PPE) designed to pro- tect against heat and fire. IFR suits are made from materials that are naturally flame-resistant and have no chemical treatment. It means the flame-resistant properties are built into the fabric, ensuring lasting protection that remains effective even after many washes. IFR suits are mainly designed to protect workers from heat and fire dangers. However, their purpose has a lot to say. Here, we have mentioned the key pur- pose of IFR suits Rockfellar coverall that fits as good as it looks. Innovative design features like stretch panelling provides excellent comfort and flexibility in key movement areas without compromising the protective properties. Other practical fea- tures include upper and lower back ventilation, back elasticating, adjustable hem to accommodate all leg lengths and multiple pockets provide secure storage.