130 gsm - 3.8oz/yd2 - 6.5oz/lin yd. 100% polyester tricot knit. Mesh panel on back upper body for added ventilation. 4 front storage pockets, radio clip strap on front shoulders. YKK zipper closure. Durable binding. 4" contrast hi-vis tape with 2" reflective tape on front and back body. Meets CSA standards.