Lululemon Men's Rulu Mock Neck Short Sleeve Shirt Color: Black Size: Medium Condition: Excellent Stretchy, naturally breathable Rulu™ fabric is sweat-wicking and buttery soft four-way stretch sweat-wicking buttery-soft handfeel naturally breathable Features Designed for: On the Move Lycra®: Added Lycra® fibre for shape retention Mobility: Underarm gusset for greater mobility Storage: Discreet zippered pocket holds a key or cash Relaxed fit: Designed to fit loosely with extra room in the chest and at the waist