There’s nothing better to ruin a great long run like red, raw skin. You all know what I am talking about, and if you don’t, you will at some point. There’s good news though! You can avoid this annoying reminder of your 20 miler with one product. I am a big fan of Body Glide. The reason I use this over other products is because it isn’t sticky, oily, or messy. You just rub it anywhere that your skin rubs together. I usually chafe at my armpits, towards my back (weird, I know) and under my sports bra right in the middle of my upper torso. When I forget to rub Body Glide on prior to my runs, I even have a little scar to remind me of my forgetfulness. However, when I use Body Glide, I never chafe. The bottle is small enough to take with you to a race in your bag and you just rub it on like deodorant. I have had the same tube for about 3 years, it lasts a long time. You can find it at any local running store as well as running specialty stores. If ordering online is easier for you, you can do that directly from their website.