Hejabiya Unisex Cotton Hosiery Hijab Cap Headband (Black, White and Pink, Free Size) - Set of 3 These under scarves are tube-like and open from both ends. It is made of stretchable jersey fabric and is non-slippery. This hijab cap comes in free size which fits all due to its stretchable behavior. This under scarf is suitable for wearing with hijab or without it or even under a scarf from which it gets its name. When worn under a hijab or scarf, this jersey under scarf keeps the hair away from the face and prevents it from exposure.