Swimsuit by Weekday, Plain swim fabric, High neck, Strappy lace-up back, Brief cut, Machine wash, 80% Polyamide, 20% Elastane, Our model wears a UK S/EU S/US XS. 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.