- 100% Organic Cotton - Hip Length - Straight - Short Sleeve - Unlined - Crystal Embellishment The Seville Sweetheart Slim Fit Round Neck T-Shirt is a handcrafted silhouette designed by our in-house artisans. Imagined in an exclusive limited edition print, this cotton slim fit t-shirt is adorned with intricately placed crystal embellishment before being finished with a rounded neckline complete with ribbed detailing.