Lululemon Metal Vent Tech Long Sleeve Nautical Navy / Nautical Navy Size M - refer to my photos for measurements Seamless construction and strategic venting make this anti-stink long-sleeve shirt training-session ready.Lightweight fabric is sweat-wicking and four-way stretch features Designed for: Training Silverescent® technology: Powered by X-STATIC®, it inhibits the growth of odour-causing bacteria on the garment Ventilation: Mesh construction for breathability Excellent preowned condition- mint - no flaws- refer to my photos for details as part of description