Within a 15-30 metre range, the Tile app for iPhone and Android finds the umbrella which emits a sound until the owner is located. At further range, you get a "last seen" location. See bluntumbrellas.com.au.
Resists gusts up to 56 km/h via a vent system that disperses wind through eight reinforced slits. Reflective tips on the canopy's rim provide visibility in low-light conditions. See hammacher.com.
With an off-centre handle, it's comfortable to hold at your side, while promoting maximum rain coverage. The umbrella folds down to 30 centimetres and is durable in wind and rain. Available in black and red. See kathmandu.com.au.