Singlet by italian knitwear manufacturer 'ann max'. Made from a stretchy, lightishweight rib knit, it has a moderate scooped neck, highish armhole, and wavy, overlocked hem. The fabric has a striking red and white striped pattern, in two iterations: the main body mostly red, with white horisontal stripe, and a panel that runs from the right shoulder to the left hem, cutting diagonally / wavily across the body, with a red and white vertical stripe.

Size unknown - tag faded (womens/unisex)
Check measurements to confirm fit (knit fabric has some stretch)
All measurements taken flat

Shoulder width: 31 cm
Width (at underarms): 37 - 44 cm (knit fabric has some stretch)
Waist width: 33 cm
Length (neck to hem): 38 cm 
Hem width: 35 cm

Presumed 95% cotton 5% elastane (tag faded, elastane visible but difficult to make out first part)
Presumed made in italy