Design Our 'Butterfly' dress was never about decoration, but about movementthe back drape unfolding like wings, shifting with every step. A sparkling linen, interwoven with a quiet sheen, cut shorter in front, longer Sierra Ferrell at the 67th Grammy Awards. Wearing custom Jeffrey Kelly designs. : r whatthefrockk Embrace sophisticated simplicity with the Sierra Dresses. Its flattering wrap design and subtle detailing make it a timeless addition to your wardrobe. Find your perfect fit by checking out the size guide!