Model in Stuido is wearing a small 
 
Perfromance Driven, lightweight, and breathable fabric in any season. Vented back panel to keep you cool during your hard workouts. Thumbhole cuffs can be worn down or up. Ideal lightweight layer for hot and cold weather. 
 
 
Color: Black 
 
Fit & Sizing
Lightweight 
Fits True to Size
Four-way stretch fabric
Thumbholes
Crew neck
Moisture wicking properties
 
Choose your regular size. When in doubt of two sizes, choose the biggest one