You can definitely fit more than you think in here. I have a TQ and 2 chem lights on the outside. Inside, I fit chest seals (not folded or bent), 2 hemostatic gauze, 1 pressure bandage, 1 thermal blanket, a 28F NPA and gloves. I still have room for a decompression needle if I choose to throw one in. Damn near a whole IFAK.