The Proton is the top of Option Gravity skydiving suit in term of excellence on flight.
The stretch cordura is used for the 85% and allows a comfortable, elastic fit.
Highly breathable and pleasant to wear, the stretch cordura keeps the body heat and is windproof, this allows a usage throughout the seasons. Recommended tight and normal fit to enjoy a fast freefall. However, this main material stretches with the wind allowing you to have always a certain grip. Stirrups and chest pocket are included.