Wavy Stripes Knit Flare Dress Willow Wave Knit Dress Blue Casual & Day Dresses Monsoon UK. Water Wave Stripe Mini Dress Blue Multi Wave Print Ruched Dress WHISTLES The Black Wave Mermaid Hem Knit Midi Dress Women's Knit Sleeveless. Style 266003 Striking black and white color block design flatters your figure with a modern, sculpted silhouette. This sleeveless knee length dress features smooth stretch fabric for all day comfort and versatile style. Dress it up or downit's your go to piece for polished, sophisticated looks. 95% POLYESTER, 5% ELASTANE