As modest fashion week starts in Istanbul, we look at the growth of this area of the fashion industry.Long considered a faith-based choice, it is gaining in popularity, proven by the modest-friendly options that many leading brands now offer. We hear the thoughts of retailers and designers on why more women are choosing to dress modestly. And content creator Maha Gondal explains how she's bringing her take on modest fashion to her thousands of followers. Plus we look at what can go wrong when brands try to cash in on what they see as a lucrative market. Presented and produced by Megan Lawton(Image: Woman wearing a maxi dress with long sleeves, standing in front of a wall covered with foliage. Credit: Getty Images)