RailRiders new Versatac Light Shirt is a expeditionary workhorse. Made from featherweight 1.5oz nylon / polyester blend, this shirt has features beyond features. They include: 2 front cargo pockets with flaps and zippers. 2 larger vertical zip pockets sit behind these cargo pockets to hold such items as maps, airline tickets, passports etc. Roll-up sleeves with lashes to stay put and invisible snaps under collar tabs to hold the collar points down. Ventilation panels run from 9 inches above hem into armpit and down sleeve to 3" before cuff. Back vent with cape adds additional ventilation.