Petar Petrov's The Undone Shirt reworks the classic white shirt with loosened proportions and tailored detailing. Lightweight cotton-silk poplin gives a crisp yet softened hand, making it a refined option for both smart and elevated-casual looks. Key attributes: White | Cotton-silk poplin | Lightweight (non-stretch fabric) | Front button closure | In-seam sleeve slits | Cuff splits | Classic collar | Dropped shoulders | Back pleats | Curved/rounded hem | Close-fitting silhouette | Long sleeves | Cuff splits | Dimensions & fit: Size 34 — CB length: 72 cm; Bust: 104 cm; Waist: 94 cm; Sleeve length: 63.7 cm | Size 36 — CB length: 73 cm; Bust: 106 cm; Waist: 96 cm; Sleeve length: 64.3 cm | Size 38 — CB length: 74 cm; Bust: 108 cm; Waist: 98 cm; Sleeve length: 64.9 cm | Size 40 — CB length: 75 cm; Bust: 110 cm; Waist: 100 cm; Sleeve length: 65.6 cm | Size 42 — CB length: 76 cm; Bust: 112 cm; Waist: 102 cm; Sleeve length: 66 cm | Size 44 — CB length: 77 cm; Bust: 114 cm; Waist: 104 cm; Sleeve length: 66.7 cm | Size 46 — CB length: 78 cm; Bust: 116 cm; Waist: 106 cm; Sleeve length: 67.3 cm | Regular fit | Hip length | Model height: 179 cm; model wears size 36 | Fits true to size | Composition & care: 79% Cotton | 21% Silk