Neo Mesh Sexy White or Black Fishnet Stretch Mesh G-String Underwear for Men, by Neptio ?«. Nylon spandex blend. This sexy streamlined g-string is a perfectly minimalist piece of underwear that has it all. This style features our Neo Grid Mesh fabric, a stretchy, soft, and breathable mesh that allows a tantalizing view, but also good airflow for all-day cool, dry, comfort. The seams are lined with an elasticized piping for the perfect fit, and the waistband and T-back strap are constructed of the same stretch piping. This is a great choice for sports and working out at the gym or wherever, and is also great for the club or rave. This style comes in black or white to suit your mood, and is available in adult men's sizes Small 27"-30", Medium 31"-33", Large 34"-36", XL 37-39", and 2XL 40-42". NPT-510 The BK is black bias the same as the fabric and the WH is the white bias with white mesh.