It depends on your department's SOPs. Most firefighters wear the strap under turnout gear so the radio stays accessible through the coat's radio pocket or lapel flap. Some wear it over the coat for faster access on non-fire calls. When in doubt, follow your department's policy or ask your officer.
For interior work, yes. Without it, the radio swings freely and can snag, rotate, or shift out of reach in low-visibility conditions. The anti-sway strap anchors the radio body so it stays flat against your chest.
Radio straps are sized primarily by radio width, not body size. Before ordering:
Fit depends on your specific gear combination: SCBA brand, turnout coat cut, and radio model all factor in. Contact us with your radio model and gear setup and we'll help you get the right configuration before you order.