More protection. More benefits. More comfort. This lightweight FR stationwear base layer made with Tech T4™ fabric serves you better than cotton t-shirts with enhanced seam strength and fire service-specific features. Durable, comfortable, and cool. We've got you covered. Athletic, tapered fit. Ribbed-knit collar. Flat-lock seams for comfort. Raglan sleeves and side gusset for ease of movement. Lightweight and moisture wicking to keep you cool on the job.