T-shirt by Weekday, Lightweight jersey, Raglan sleeves, Contrast piping, Regular fit - true to size, Machine wash, 93% Viscose, 7% Elastane, Our model wears a UK S/EU S/US XS. ABOUT WEEKDAY Weekday founders rjan Andersson and Adam Friberg honed their signature Scandinavian style across a cult line of skinny jeans. Fast-forward to now and Weekday's MTWTFSS collection continues to take you from Monday to Friday with denim shorts and tees, and slim and skinny jeans named after days of the week.