5.11 Men's PT-R Catalyst Pro Long Sleeve Tactical Shirt - When the chill starts to set in, throw on the Catalyst Pro and continue on your way. Mock neck with zip front closure Thumbholes at sleeve openings Vertical logo locker loop at wearer's upper back body Embossed 5.11 logo stretch tape at inside neck Internal heat transfer and tagless main label 5.11 reflective heat transfer at wearer's right shoulder Wicking and anti-odor finish Style: 82134