The Leslie Sequin Maxi Dress offers sparkle and style. Crafted from stretch-sequin fabric and fully lined, this style offers a high back-hem slit for ease of movement, a square neckline, and center-back zipper. The Leslie Sequin Maxi Dress offers sparkle and style. Crafted from stretch-sequin fabric and fully lined, this style offers a high back-hem slit for ease of movement, a square neckline, and center-back zipper. Helsi — a namesake of the founder’s mother, meaning “independent,” “confident,” and “ambitious” — designs hand-crafted, special occasion garments. Focusing on boutique pieces, Helsi’s team of artisans carefully crafts dimensional florals and trims with embroidery, feather, and pearl accents.