Woot offers Under Armour Men's Tactical Performance Polo for $11.99 free shipping with Prime. 

Product Description:
This polo has an ultra-comfortable fit, sweat-wicking performance for the heat, and, as part of our tactical line, also comes in solid colors with tonal logos, so you can wear it with your uniform. Smooth, soft anti-pick, anti-pill fabric has a textured snag-free finish. Mesh underarm panels for added breathability. 4-way stretch material moves better in every direction. Material wicks sweat & dries really fast, Durable rib-knit collar. Radio clip on shoulders & microphone loop on front placket, Raglan sleeves. 95% Polyester/5% Elastane
 

• Smooth, soft anti-pick, anti-pill fabric has a textured snag-free finish
• Mesh underarm panels for added breathability
• 4-way stretch material moves better in every direction
• Material wicks sweat & dries really fast, Durable rib-knit collar
• Radio clip on shoulders & microphone loop on front placket, Raglan sleeves