These athletic sports headbands are made of a high-quality nylon elastic blend. The soft but strong breathable fabric is moisture-wicking, keeping your head cool. The high-performance elastic fabric allows the headband a soft stretch for the perfect fit and provides a lightweight and comfortable feeling. Great for sports or fashion, all hairstyles, and types, thick or thin. DESIGNED FOR TRAINING: These super absorbent sweat headbands are ideal for running, walking, hiking, marathons, yoga, and any type of aerobics class like spin, horizontal conditioning, and CrossFit. They are also great for running daily errands like gardening, traveling, shopping, or even wearing to work or school. COMFORT & STRETCH: The high-quality soft stretch fabric will fit your head perfectly and comfortably without being too tight or too loose. The inside features a silicone anti-slip strap to prevent the headband from moving around.