Yes, they are. They state on their ‘New In’ page, “Shop the latest drop of more trending styles, knock-out dresses, and everything in between. From tops to bottoms, it’s time to update those wardrobe essentials and get these looks on high rotation.” Words like ‘trending’, ‘high rotation’, and ‘latest drop’ are dead giveaways.
However, they appear to follow some sustainable practices. According to their various Sustainability pages, they source 80% of products from their own brand and 20% from external brands, ensuring all suppliers meet ethical standards. They are committed to reducing their environmental footprint by using eco-friendly materials – they have their “Conscious Edit” which is a collection of clothing made from recycled fibers, natural plant-based fibers, and other fabric alternatives. I can also confirm that some of the packaging is made of recycled plastic.
Check out this article What Is Fast Fashion, Anyway? by the good trade to learn more about fast fashion, sustainability, and how to spot it from a mile away!