JONATHAN SIMKHAI STANDARD Amanda Maxi Dress in Sage. - size XS (also in S) JONATHAN SIMKHAI STANDARD Amanda Maxi Dress in Sage. - size XS (also in S) 88% tencel 12% spandex. Hand wash cold. Unlined. Pull-on styling. Back cut-out. Ribbed jersey fabric. Made in USA. JDAR-WD16. 221-1105-ST. Jonathan Simkhai launched his eco-responsible essentials collection as an extension of his new lifestyle and design philosophy after relocating to Los Angeles from New York. Jonathan Simkhai Standard encompasses the designer's roots in fine materials coupled with everyday functionality and a commitment to conscious progress. The continuous line of denim and ready-to-wear offers versatile, effortless and minimalist staple items meant to add practicality and timeless pieces to any woman's wardrobe.