Open back design is the defining detail - invisible from the front, it provides ventilation exactly where you need it most during a warm-up or studio session. The curved hem drops longer at the back and rises at the sides, creating a relaxed silhouette that skims over leggings without bunching or riding up mid-movement. Ribbed cuffs keep the sleeves in place, whether you're pushing through a flow or pulling them down between sets. A clean crew neckline and dropped shoulders give this an oversized, lived-in hang that works just as well off the mat as on it. Side vents at the hem allow for a full range of motion and add to the easy, unrestrictive drape of the piece. This sweatshirt sits comfortably at the crossover point between active kit and everyday wear. It layers directly over a sports bra before a class, and the open back means you won't overheat the moment the session gets going. After training, it transitions without any effort - keep it with printed leggings and chunky-soled trainers as shown, or throw it over joggers for the commute home. The oversized cut means it also works tucked loosely into high-waisted wide-leg trousers for a more considered off-duty look. Its clean front profile makes it easy to dress up with accessories without the piece fighting for attention. Built for the studio but genuinely useful beyond it, this is the kind of top that earns its place in regular rotation - from early morning runs to post-class coffee without a change of bag required.