Trending Boys Curly Haircuts 2021 : Baby boy haircuts will not only look great on a kid but also complement his style in 2021. I also recommend a curl sponge if you prefer the rough look or advanced sculpting gel for a softer curly look. Boys Curly Haircuts 2021 / Boy's side parted curly hair in this haircut for boys, the curly hair is trimmed rather short and uniform that.