Thierry Colson's affection for simple silhouettes is dialled up this season with maximalist detailing. This lapis-blue Elizabethan dress is crafted from lightweight cotton-poplin and accented with guipure-lace on the high neck, upper bodice, and half-length sleeves. A detachable self-fastening tie threads through contrasting black loops and sends subtle waves from the gathered waist. Team it with leather slides for a day-to-night summer ensemble.