Baselayer

LJCCQ
Men's Compression Tops Long Sleeves Tight Shirts Cool Dry Activewear Sports Baselayer

This compression shirt is very lightweight. It's an Asian size XL, which is like a US size medium. 
The sides have mesh inserts, which help keep the wearer cool,  in addition to the wick-away fabric. 
I was impressed by the lightness of this fabric, and the clean lines. 
I would recommend this compression top for workouts, jiu jitsu, and as a baselayer for winter outdoor activities.  #sponsored #rankboosterreview #ljccq
 https://www.amazon.com/dp/B0777MWWT7/ref=cm_sw_r_cp_apa_AHKkAbG2DXRJ6