Rsl Half Sleeves Tactical T-ShirtSleeves: 70% Cotton 30% Polyester, Torso: 80% Nylon 20% Spandex Original YKK zippers Breathable and lightweight knit fabric with anti odor treatment Ripstop fabric on shoulders and sleeves Saddle shoulder design for unrestricted movement Two zippered bicep pockets with patches for insignia Flatlock seams throughout for increased comfort Moisture wicking properties to keep you dry Velcro panels on sleeves for attaching patches and IDs Special mesh