Wills Wing offers a full line of emergency reserve parachutes for hang gliding and paragliding. With good and consistent decision-making, you will most likely never need to use an emergency reserve. If the worst happens, and you should encounter a structural failure, mid-air collision, irrecoverable collapse, or incapacitating medical emergency, your emergency reserve is your last, best chance to avoid serious injury. Wills Wing has been selling emergency reserve parachutes since 1978.