Our LS Bamboo Performance Tee is nothing but comfortable! With added thumbholes this will be your go to tee! This tee fits a little tighter for a more compression feel. Our signature bamboo fabric is: -Moisture Wicking-Super Soft-Eco-Friendly-Anti-Odor 42.5% Bamboo/42.5 Cotton/15% Spandex (Sizes XS-XXL)