Ruched side panels run from underarm to hem, creating a contoured silhouette that sits close to the body without restricting movement. Full-length zip-through front with a crew neckline - easy to pull on and off between sets or layers. Thumbhole cuffs keep the sleeves anchored in place during training, stopping them from riding up mid-movement. Nylon construction gives the jacket a smooth, second-skin feel that holds its shape through repeated wear and washing. Seamless construction at key points reduces friction and bulk, making it a practical base layer as much as an outer piece. This jacket works hardest when it's doing double duty - worn zipped up over a sports bra on the way to the gym, then unzipped mid-session when things heat up. The ruching along the sides means it doesn't just sit flat against the body; it actually moves with you, which matters during anything dynamic like circuits, Pilates, or a run. The fitted hem stays tucked in place rather than bunching up over leggings, so the whole look stays put from warm-up to cool-down. The model pairs it with matching seamless leggings for a co-ordinated set, which is the most straightforward way to wear it - but it layers just as well over a longline sports bra with high-waisted shorts for a different training look. The thumbhole cuffs make it a go-to for outdoor workouts in cooler weather, keeping that gap between sleeve and glove covered without any fuss.