- Boys’ black suit trousers - Two side pockets, one piped back pocket - Semi-plain fabric, exclusive IKKS ethnic motif lining - Adjustable waist, zip and hook fly on front Shop the matching jacket « Protect the planet and your clothes when you wash them by using a GUPPYFRIEND® wash bag » The boys’ black suit trousers have a semi-plain fabric with polka dots. It’s a star piece for the next summer ceremonies.