Pyjama set by Chelsea Peers, Set includes top and bottoms, For when comfort is key, Festive mountain design, 'Tis the season, Trouser bottoms, Drawstring waist, Fitted cuffs. New York label Chelsea Peers brings us a brilliant range of our latest loungewear obsession- onesies. All-American with a prep-inspired look, Chelsea Peers offers up luxury onesies in plain and printed premium jersey fabrics.