NEW WITH TAGS // NEVER WORN!! Lululemon Metal Vent Tech Gray Black Short Sleeve Athletic Shirt Size M Mens One top, endless possibility—refreshed for fewer distractions, wear after wear Silver threads reduce odour-causing bacteria between challenging workouts Minimal seams to reduce chafe Added elastane improves stretch and shape retention SLIM FIT: Designed to skim the body from chest to waist All: 53% Nylon, 40% Recycled polyester, 4% Elastane, 3% X-static® nylon