We interpet the size "JrL" to mean Junior L .Measured dimensions are 15 inches long and 11 inches wide (before stretching}. Lightly padded: The Mini Dryfleece chamois is lightweight, quick drying and provides good protection on the bike. Comfortable: The Comp 2 Shorts? Endurexx fabric is chlorine-resistant, comfortable and soft to the touch. Practical: Flatlock seams reduce chafing and irritation. Stay in place: Elastic waist with drawstring keeps garment in place during activity. Visible: Reflective accents increase visibility and keep your young rider safe. asin B0196JN4HQ rlea22 3/11/22