Do roller skates (not in-line skates) run true to size?

a 9 will be good but make sure you check and see if they are women or men roller skate.

i wear an 8.5 and i always get a 9 to be safe, so it wouldn't hurt to get a 9

It all depends on who makes the boot and the width of the boot. If you can email the seller and ask their foot size/width if these boots are not new. I am a size 7 shoe and my skate boots are a 6.5 because of the width. These boots are probably 20 years old now and I have been looking at replacing them with ones that can be heated so that they form to your foot. Good luck and have fun skating :)

Roller skate sizes are just like normal shoes, as the size that fits you can vary depending on where the shoe was made. Here's a tip I used when buying my skates online. My skates fit perfectly. Put down a piece of paper & trace both feet WEARING the socks you intend to skate in. Once you have the tracings down, measure the length with a ruler from the biggest point (usually the big toe) down to the heel. Use the biggest measurement you have obtained, as one foot is usually a little bigger than the other. Convert the length to INCHES: http://www.onlineconversion.com/length.htm Then go to the skate manufacturers website to check their measurements table (most good skate manufacturers such as Riedell have a table like this) to see what the best size is for your length. A good website that has most of these measurements handy is: http://www.skates.com/Fitting-roller-inline-skates-and-size-charts-s/12.htm Good luck & happy skating! :-)