COS simple jumpsuit. 
Size: 32 (XXS) but easly will suit 34 and 36 as well
Fabric: 68% lyocell, 29% polyamid and 3% elastane
Color: navy blue 
Condition: no belt, beside that perfect 
Measures: 
armpit to armpit width 46 cm
waist width 39 cm
shoulders width 35 cm