Riedell R3Quad Roller Skates - Girls Size 5 . These are in excellent condition. Worn once to the rink and then grew out of them before we went back. The Riedell R3 roller skate is the perfect combination of comfort and performance. The R3 skate features a comfortable man-made vinyl boot with a durable PowerDyne Thrust plate, toe stop, bearings, and quality Radar Cayman wheels. Original packing and box included. The Ladies size 5 will accommodate a foot length up to 9 1/8". Typically this is a size 5.5 - 6 in Women's street shoe sizes. The best way to know for sure it to measure your feet. If you have a very wide foot, these will not fit. Meaning you wear a wide in street shoes. How to measure feet for skates. Stand with one foot on a sheet of paper. Place all your weight on that foot. Take a pencil and place a mark on the paper at the end of the longest toe and then another mark at the heel. Take your foot off the paper and measure the distance between the two marks. Please note, you will want to measure both feet as one foot is typically longer than the other. Go with the size of the larger foot. Please note: Make sure your pencil is straight up and down when making your marks as any angle can change the length to make the sizing off.