Nathan Siren LED Alarm RX Personal Safety Device size-9-5 Packs down small enough to

Packs down small enough to stash in your pack on long approaches or multi-day routes where every gram counts

Full-length front zipper lets you dial your temperature on the move

92% recycled polyester and 8% elastane construction wicks moisture and moves with your stride

whether you're cranking uphills or throwing a pack on mid-run

while the cropped cut sits flush over high-waist leggings without bunching or riding up

Nathan Siren LED Alarm RX Personal Safety Device size-9-5 Packs down small enough toFor solo runners, walkers, and commuters who train before dawn or after dark, the Siren LED Alarm RX is our go to personal safety tool for low light conditions. A 120dB alarm cuts through ambient noise up to 600 feet away, while a multi mode LED strobe keeps you visible to traffic and other trail users. USB recharging and IPX4 weather resistance mean it's always ready when you need it. 120dB personal alarm audible up to 600 feet loud enough to deter