Windstor is a sun protection screen and is an outdoor external awning system, which is fully wind tight. The exclusive zip system keeps the fabric wind tight on both sides in every position. Windstor’s ZIP system provides a hermetic closure by keeping the cloth inside the guides offering total protection from wind and rain. In its fully-closed position, the whole system acts as a perfect heat barrier in the winter and whereas it also provides an insect-proof environment in the summer.