Underscarf such as tubeband, tie back caps, ruched tie back, ninja caps is worn underneath a hijab to provide coverage and secure the hijab in place. It helps prevent the hijab from slipping and keeps the hair covered. Undercaps come in various colors and materials to match different hijabs and outfits. They are typically made of breathable fabric like jersey to ensure comfort while wearing the hijab. They are an essential accessory for many who wear hijab as they offer additional coverage and help create a neat and polished look.