High Sierra Trapezoid Boot Bag 600D Duralite - 600 x 600-denier Duralite features a special water resistant coating to help keep gear dry. Diamond Ripstop - 300 x 600-denier diamond ripstop Duralite fabric features a special water resistant coating to help keep gear dry. Compression Straps - For extra security, reinforcement and ease in adjusting size of bag. Free Shipping on All High Sierra Orders.