COS Stores PortugalMade from bold blue organic cotton with a touch of stretch, this slim-fit tank top is an essential on warmer days. – Round neck- Sleeveless design- Organic cotton is grown from non-genetically modified seeds without chemical fertilisers or pesticides 97% Organic cotton, 3% Elastane / Machine washableBack length of size S is 61.5cm / Model wears a size S