Rendered in platinum sequin fabric, the Helsi Leslie Strapless Dress is a celestial show-stopper. A fully-boned bodice and fitted silhouette lend structure, while an alluring back slit lets you sashay across the dance floor. Rendered in platinum sequin fabric, the Helsi Leslie Strapless Dress is a celestial show-stopper. A fully-boned bodice and fitted silhouette lend structure, while an alluring back slit lets you sashay across the dance floor. 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.