# Ruby open-back gathered crepe midi dress - **Brand:** SIR. - **Price:** $207.00 ~~$690.00~~ - **Catalog:** netaporter - **Retailer:** net-a-porter - **Product URL:** https://go.cosimo.shop/r/gAAAAABqp-axNZpueTC-cdQar0l1KJCXsZDoCA7bdCeCgPw0JEcJwYa-Hom1nZN2rvXkstsxxrP0kbkYfSYIIpRcnWwoSZm9b2-nYSxmhxJ--KFORBbTxG_oeg-r0ap8fCvDK13p1CEaIdetO3wC9Rzef-II1jmQcRZim-eMX0rHNA_PpbILULfXkatpbUefi2iR6hXkpF4vf9f212Nfn40YEjY5Mfyx1FV_U5__P_k0Rr05KyVyORn_q3TphHsTMla8Q72US0ZSIVY9MRBILrCkwF5Cdld9slzygMmaPWhdiDZBwACVuFcOCEVXrIZO1JuqAcDRmtLTu6-KQcoRqVAip_notgcBpaLLaOyMOyypiIByj2D9dbt8Zh7xdqSgVK4h5Yzo70K76YKHnY2cH_5Ex97pI7rL5dLt1Fb8MDZdpI3bKzhGRBlIKA1NqaLIyxziLSOR_unTjbmU5NuV6s7V7I5CkBrCFme2wGDpvmLSLPJfeVRF0wQl5e4dxW3jmHMVIGKImBk4BsGMYsTxuLMeaZQxGwbrzC4BXuhQPNIq08aYYP510RI= - **Availability:** Out of stock ## Summary Tan crepe midi dress featuring a high neckline, sleeveless design, and gathered ruched detailing at the hips and open back for a slim, elegant fit. ## Description SIR's 'Ruby' gown captures the brand's modern, minimal elegance. Underpinned by an optional slip for coverage, it's cut from lightweight crepe that's gathered around the hips and ruched through the base of the open back for definition - turn in photos to show off this detail. ## Appearance - **Colors:** Tan - **Sizes:** 00, 0, 1, 2, 3, 4 (per-size availability under Variants) - **Materials:** 100% Polyester - **Fit:** SIR. follows its own size guide, please refer to below: - Size 00 = UK 4/ US 0/ IT 36/ FR 32 - Size 0 = UK 6/ US 2/ IT 38/ FR 34 - Size 1 = UK 8/ US 4/ IT 40/ FR 36 - Size 2 = UK 10/ US 6/ IT 42/ FR 38 - Size 3 = UK 12/ US 8/ IT 44/ FR 40 - Size 4 = UK 14/ US 10/ IT 46/ FR 42

- Fits true to size, take your normal size - Designed for a slim fit - Lightweight, non-stretchy fabric - Model is 180cm/ 5'11" and is wearing the designer's size 1

Model measurements: - Bust: 80cm/ 31.5" - Waist: 65cm/ 25.5" - Hip: 89cm/ 35" ## Variants - **In stock:** 0 of 6 - **Color (all variants):** Tan | Size | SKU | Availability | | --- | --- | --- | | 00 | 3074457345629754853 | Out of stock | | 0 | 3074457345629754857 | Out of stock | | 1 | 3074457345629754856 | Out of stock | | 2 | 3074457345629754858 | Out of stock | | 3 | 3074457345629754854 | Out of stock | | 4 | 3074457345629754855 | Out of stock | ## Categories - **Categories:** Clothing > Dresses > Midi Dresses ## Additional Attributes - **composition:** 100% Polyester - **part number:** 46376663162888661P - **size and fit:** SIR. follows its own size guide, please refer to below: - Size 00 = UK 4/ US 0/ IT 36/ FR 32 - Size 0 = UK 6/ US 2/ IT 38/ FR 34 - Size 1 = UK 8/ US 4/ IT 40/ FR 36 - Size 2 = UK 10/ US 6/ IT 42/ FR 38 - Size 3 = UK 12/ US 8/ IT 44/ FR 40 - Size 4 = UK 14/ US 10/ IT 46/ FR 42

- Fits true to size, take your normal size - Designed for a slim fit - Lightweight, non-stretchy fabric - Model is 180cm/ 5'11" and is wearing the designer's size 1

Model measurements: - Bust: 80cm/ 31.5" - Waist: 65cm/ 25.5" - Hip: 89cm/ 35" - **mf part number:** SIR225-1069 - **centralSizeScheme:** RTW - 00/4 - **first visible date:** 2025-06-26T03:40:08.000Z - **swatch variant ids:** 46376663162888701 - **designer identifier:** SIR ## Enrichment - **Type:** midi dress - **Type Synonyms:** midi gown, cocktail dress - **Gender:** female - **Age Groups:** adult - **Tags:** open back, gathered, ruched, crepe, sleeveless, high neck, slim fit - **Styles:** minimalist, modern, elegant - **Colors:** tan - **Color Families:** Brown - **Category Path:** Apparel & Accessories > Clothing > Dresses - **Construction Detail:** Ruched - **Dress occasion:** Evening - **Dress style:** Backless, Gown - **Fabric:** Crepe, Polyester - **Graphic Type:** Solid / No Print - **Neckline:** Mock Neck - **Pattern:** Solid - **Size Type:** Regular - **Skirt/Dress length type:** Midi - **Sleeve length type:** Sleeveless - **Canonical Brand:** SIR. ## Images - ![Image 1](https://cdn.octogen.ai/4bf83d60f6bfdd2e2a79155033508ddb/a51eda19befe2b44bf6f82575b9527f9.webp) - ![Image 2](https://cdn.octogen.ai/4bf83d60f6bfdd2e2a79155033508ddb/6a202af1d446b6c4ae3f7fa68e999c21.webp) - ![Image 3](https://cdn.octogen.ai/4bf83d60f6bfdd2e2a79155033508ddb/8d315d70ec620000cac6d2911825451b.webp) - ![Image 4](https://cdn.octogen.ai/4bf83d60f6bfdd2e2a79155033508ddb/9e29ba3cf6a44f471760b6ff3e2592da.webp) --- *Source: cosimo.shop | Product ID: b29444c4-08fe-4733-a76e-4cec391ea322 | Canonical URL: https://cosimo.shop/product/sir/ruby-open-back-gathered-crepe-midi-dress-b29444c4-08fe-4733-a76e-4cec391ea322*