We love to geek out about gear and the Lightweight Short from On are a gear heads dream. Soft but strong, the technical four-way stretch blend used in the front and inner briefs are fast-drying and offer total freedom of movement. Perforated mesh to the rear keeps you cool and the elasticated waistband hugs gently for a stay-put fit. Whether you're training or racing, the Lightweight Shorts will perform to your highest standards.