Set includes 5 U part MONO spandex dome wig caps and 5 wig combs for secure wear. Key benefits Natural scalp appearance: ultrathin, center skin color is designed to blend with the scalp so the cap is less noticeable under wigs. Secure, comfortable fit: stretchable spandex dome conforms to head shape to keep hair in place and reduce slipping and itching while wearing a wig or mask. Breathable and lightweight: soft material with ventilation holes improves airflow and comfort for extended wear. Versatile compatibility: works with long hair, short hair, straight hair and curly hair, and is suitable for men and women. Easy to use: dome style pulls on and off without tools; included wig combs provide extra hold when needed. Sizes and fit guidance Size L: fits head circumference 24 to 25 inches. Size M: fits head circumference 22 to 23 inches. Size S: fits head circumference 20 to 21 inches. Choose the size that matches your head circumference for the fit. What you get 5 pieces U part MONO wig caps (stretchable spandex dome style) 5 wig combs for additional attachment and security Practical uses Cosplay and costume: quickly create a clean base for wigs and styling during conventions, performances, or photo shoots. Everyday wig wear: keeps hair contained and prevents irritation under wigs, masks or hats during daily activities. Athletic or streetwear looks: works as a comfortable undercap or hip hop style cap for men or women while keeping hair out of the face. How to use Pull the spandex dome over your hair, tuck or braid excess hair as desired, position the center skin area where needed, and secure with the included wig combs if extra hold is required. No additional tools are . Material and care Stretchable spandex, breathable with ventilation holes. Hand wash gently and air dry to maintain shape and elasticity.