WaveBuilder Full Force Durag. The Full Force Durag is a Wavebuilder unique patented design. The front panel pulls down and not around your head. This distributes force tightly and evenly for a deep defined wave pattern and very smooth look. As with our classic WaveBuilder durag - the Full Force is made of breathable, cool and comfortable fabric. It is cut to the perfect size and all seams are sewn with a high stitch count to ensure durability. This high quality, safe, effective WAVEBUILDER product is made by us with only the best available materials.