RLX Ralph Lauren
Performance Polo
XL.  Per RL size chart, fits 46-48”  chest.  
3 button placket
Spread Collar with under buttons
Short sleeves.  Woven RLX loop at right sleeve cuff
Moisture wicking
UV protection 
Tennis tail
92% polyester / 8% elastane
Pit to pit 24" flat
Length front 28"
hi-lo hem