Relaxed silhouettes are a COS signature and our design team tapped into that expertise when creating our staple tee. Shaped for an easy-going fit, it's crafted from the softest 180gsm cotton-jersey that's gentle on skin and will retain its shape, even after plenty of washes and wears- Relaxed fit, 180gsm- Dropped shoulders100% Cotton / Machine washable Back length of size M is 28.74"