From the AS Colour range.
Slim-Regular fit 

Crew neck

Mid-weight, 180 GSM, 26-singles

100% combed cotton (marles 15% polyester)

Neck ribbing, side seamed, shoulder to shoulder tape, double needle hems, preshrunk to minimise shrinkage

Sizes:
S - 2XL

Colours:
White, grey, charcoal, and black