100% Cotton Zipper closure ⚛Design: This tactical shirt is designed with long / short sleeves and a 1/4 zip front collar for up and down wear. And set two small pockets on both sides of the shoulder to hang small items. ⚛Pairing: These tactical T-shirts are mainly used by people with active lifestyles, such as police and security personnel, EMS, military, military, and everyone who only likes tactical or outdoor style clothing for daily use by EDC. ⚛Fabric: Soft, lightweight and very suitable for outdoor use. Traditional shirts are made of polyester / cotton fabric with excellent elasticity and durability, making the shirt breathable, quick-drying and helping to prevent overheating and keep cool. ⚛Occasion: Casual tactical shirt, military style, very suitable for hiking, mountain climbing, camping, hunting, fishing, mountain climbing, cycling, adventure travel, army training, special police and other outdoor activities. Good official looking shirt for cosplay / airsoft / paintball. ⚛Size Chart: This is not Amazon's standard size,please refer to the left size Chart before purchasing,if you prefer a looser fit, go up a size.US=Tag S,US XS=Tag M,US S=Tag L,US M=Tag XL,US L=Tag 2XL,US XL=Tag 3XL.