ASICS® Core Singlet - Men'sRunners, don't forget the ASICS® Core Singlet. Texturized mesh adds style as wicking technology manages moisture, keeping you cool and dry. Flatline seams provide strength and durability while overlock seam detailing reduces chafing, enhancing comfort. Retroreflective materials bounce light back to its source, increasing the visibility of this running singlet. 100% polyester. Imported. International shipping is not available.