TRAINING STARTS NOW!  PRODUCT DESCRIPTION The Wave Training Cap is a combination of a wave cap and a stretch cap.  It provides more hold with an added spandex band to keep hair secure. Breathable, cool, and comfortable premium construction for maximum compression and wave-making potential. Stays tight all night with a form-fitting design.   This high-quality, safe, effective WAVEBUILDER product is made by us with only the best available materials.