A LIGHTER, MORE BREATHABLE SHORT. Breathable enough for your run. Light enough for all-day wear. The Nike Run Division Pinnacle Shorts deliver a design created from athlete-informed data, courtesy of the Advanced Running Concepts (ARC) team. They use perforated details and smooth materials for support. The result is ventilated comfort, helping you stay dry through every mile. All-Day Functionality: The Run Division collection brings you gear for any part of your day. Each piece uses runner insights gathered by our Advanced Running Concepts team (ARC). Ventilated and light, these products have materials and reflective elements that create an ensemble you can wear for work and workouts. Runner-Informed Cooling: Nike's ARC team worked with athletes from around the world to learn where their bodies heat up the most. Using that data, we placed perforations at the front and back for cooling with every step. Soft and Reflective: Lightweight fabric feels smooth against your skin. Reflective elements are knit into the body on the back leg. Less Distractions, More Comfort: Minimal seams at the side vents help you run freely. Adjustable Design: An elastic waistband with a drawcord lets you adjust the fit. The low-profile waistband helps reduce heat and friction while you run. Built-In Support: A built-in liner is made with mesh for soft comfort. More Benefits: Drop-in pockets help hold items like a key or card. Product Details: Reflective elements. Not intended for use as Personal Protective Equipment (PPE). Body: 84% nylon/16% spandex. Tight/tight center front lining: 89% polyester/11% spandex. Machine wash. Imported. Style: DA1294; Color: Black/Black; Size: 2XL; Gender: Male; Age Group: Adult | Nike Dri-FIT Run Division Pinnacle Men's Running Shorts in Black, Size: 2XL | DA1294-010