There are dresses that announce the season. And then there’s Opal Laine.

An opal-luminescent button-down, belted just so, with a rather extraordinary talent for catching the light. Somewhere between summer’s last shimmer and autumn’s first whisper, she makes the transition look positively enchanting.

Her secret? Weathercloth—a breathable, durable, wrinkle-resistant blend of 70% cotton and 30% polyester, cross-dyed in iridescent shades of purple and blue that shimmer differently with every change of light. A spread collar and ¾ sleeves keep things classic, while the self-tie belt defines the waist. At approximately 54 inches from shoulder to hem, she falls somewhere between midi and full length, with two front slits that let her move with you.

Pair with our Daria lavender-grey baroque pearl collection by Mela. A little light, a little wanderlust, and an entirely intoxicating effect.