Set for the Season Navy Floral Tie-Strap Two-Piece Midi Dress. Summer soirees will never be the same once you've got the Lulus Set for the Season Navy Floral Tie-Strap Two-Piece Midi Dress! Lightweight woven fabric shapes this cute dress. Tying spaghetti straps support a bodice with a gathered, cross-front design and cutout detail at the center. Matching skirt has a banded waist (with elastic at back) atop a floaty, tiered midi skirt.