JOLYN SIZING: We highly recommend sizing up from your usual size in other brands if you're unfamiliar with the JOLYN fit and fabric; By design, the Foreverever fabric has little stretch and high durability so it is a very structured swimsuit, designed to be tight fitting for competitive swimmers and active women alike JOLYN SIZING: We highly recommend sizing down from your usual size in other brands if you're unfamiliar with the JOLYN fit and fabric; By design, the Foreverever fabric has little stretch and high durability so it is a very structured swimsuit, designed to be tight fitting for competitive swimmers and active women alike MADE FOR MOVEMENT: The Perry is a non-adjustable swimsuit onesie that features contrasting stitching and binding for a crisp, athletic look; The contemporary design includes two over-the-shoulder straps that criss-cross along the back and transition into a cut-out detail along the rib cage; Good for swimming, water polo, lifeguarding, paddling, ocean and pool activities JOLYN SWIMWEAR: Created by female athletes for female athletes; We are inspired by active women of all shapes, sizes and abilities; We envision a world where all women have confidence in their bodies and the courage to try new adventures The Perry is a non-adjustable women's one piece swimsuit that features cut out strap detailing on the back . This fixed back women's swimsuit is a stylish and cute one piece that will stay put during swim practice or any activity.