The quality of materials used to be used.
Is that cool or abusive material.
Absorb sweat or not.
The color does not fade or wash after a few times.
As for the hijab, well a lot of variations of it .. to confused to write the forms. also mix the colors.
Honestly, I usually prefer to veil model first. So like when shopping online, if there is a veil that the model is interesting, I was immediately interested in buying :). Heck yes hopefully also the material that absorbs sweat. But if not, it could be arranged .. dipakenya to heat in the room who does not hold any Sahaja :) or heat: (