Stay fresher longer with the ScentBlocker 1.5 Performance Long-Sleeve Shirt. Rugged 92% polyester, 8% spandex jersey fabric is printed with a Trinity technology backer, which adsorbs human odor, keeping you fresh for longer. S3 antimicrobial technology helps inhibit the growth of odor-causing bacteria for enhanced scent control. The classic crew-neck collar is stylish and comfortable. Raglan sleeves allow a full range of motion in the arms. Thumbholes at the cuffs help keep hands warm and allow for easy layering. System Layer 1. Imported.