Use them while training, wear them to recover—either way, your legs will thank you. During activity, SLS3's Compression Sox boost bloodflow significantly, increasing oxygen delivery to your working muscles so you go faster, farther with less fatigue. They also offer significant support to your Achilles tendons, tibia, calves and ankles, reducing common injuries. Compression drastically reduces muscle vibration as well, leading to less damage of soft tissue and post-exercise soreness. While at rest, the improved circulation helps your body eliminate metabolic wastes like lactic acid so you're less sore in the morning and recover faster.