Short Sleeved 5.11 Tactical Helios Polo is now at Military1st.co.uk... "Snag-resistant 5.11 Helios Polo is moisture wicking and quick drying, and comes with the antimicrobial technology and integrated underarm gussets for all day comfort. Made of quality 4.5 oz. jersey knit polyester with overlocked main internal seams and Melamine buttons, 5.11 Helios Polo is lightweight yet durable.