The first thing I noticed as I put my GoldToe Support Socks on is that they are a much higher compression than any other brand I've tried. This is a very firm compression, which makes it perfect for wearing during running, racquetball, or any other high-impact sport. There are toe and heel "pockets" to allow normal fit in these areas (unlike some other compression-type socks that just cram your toes together!) but the rest of the sock is contoured to fit just right with the perfect amount of support and pressure-relief.
Another reason I like these GoldToe Support Socks so well is they're a much thinner material than my others. This makes them cooler and thus much more comfortable, especially when you're sweating during a workout!! The socks also stay up very well, even during a 2-mile run. No having to stop and adjust the socks or keep pulling them up.
I would like to point out that even if you don't need compression or support socks for your workouts, these are great for other reasons. They promote healthy circulation in the legs and feet, which makes them perfect for people who are on their feet for extended periods of time, have swelling, leg pain, or varicose veins, or even for someone with diabetes. Whatever your purpose for needing support socks, I haven't found a better pair than these from GoldToe!