While they're providing compression to your muscles, the 2XU Hyoptik Compression Shorts will also make sure you stay visible to other road users as you train with the highly reflective graphics added to the outside of each leg. The shorts are constructed using high filament yarns with antimicrobial properties, affording them a compressive fit that won't end up see through after a few washes. 2XU adds targeted zones of compression to the shorts to specifically support the abductors, glutes, quads, and hamstrings as you work out, which works by limiting muscle oscillation and improving circulation to your muscles to prevent soreness. A lie flat, 3. 5cm waistband and flatlock seaming throughout ensure the fabric stays securely in place while lessening the likelihood of chafing.