Yes. The Radians ST21-3P is an ANSI/ISEA 107 Type R, Class 3 long-sleeve safety t-shirt — the highest visibility class in the standard, designed for workers in high-risk, high-speed traffic environments such as highway construction, road crews, and utility work. Class 3 requires the most background and reflective material (long sleeves with sleeve striping count toward this), so it's suited for jobs where workers must be seen from a distance and in low light. It's made with Max-Dri™ moisture-wicking mesh and comes in Hi-Vis Green or Hi-Vis Orange, with free shipping.

The Radians ST21-3P meets ANSI/ISEA 107, Type R, Class 3. Type R means it's designed for roadway/right-of-way use, and Class 3 is the highest visibility level, requiring the most high-visibility background fabric and retroreflective tape for maximum conspicuity in high-speed or low-light conditions. It uses 2" reflective tape as one horizontal stripe on the torso plus stripes on each sleeve.

Max-Dri™ is Radians' moisture-wicking mesh fabric technology. In the ST21-3P it's an arid Birdseye mesh made of 100% polyester that pulls sweat away from the skin and allows maximum breathability without sacrificing durability. The wicking action improves hot-weather comfort and makes the shirt feel cooler during extended wear, while keeping the garment lightweight.

On the Radians ST21-3P, the 2" reflective stripes are adhered by heat transfer rather than sewn on. The tape is stretchable, so the shirt flexes and wears much more like a regular t-shirt — softer, with no stitched seams under the reflective material to chafe or stiffen the fabric. This improves comfort and range of motion compared with traditional sewn-on reflective tape.

Class 3 (like the Radians ST21-3P) is required when workers face the highest risk — high-speed traffic (typically above 50 mph), poor visibility, or complex backgrounds where they must be seen from a greater distance. Class 3 garments must have sleeves with reflective striping and more overall high-visibility material than Class 2. The ST21-3P's long sleeves and sleeve stripes are part of what qualifies it as Type R, Class 3. Choose Class 2 for lower-speed or lower-risk areas; choose Class 3 for highways, night work, and maximum conspicuity.

The Radians ST21-3P is available in Hi-Vis Green and Hi-Vis Orange, in sizes S through 5XL. It's a long-sleeve pullover t-shirt style with a crew neck, a single upper-left-front (left chest) pocket, and reflective striping on the torso and both sleeves. Free shipping is included.

Yes. The Radians ST21-3P is built for heat: its Max-Dri™ arid Birdseye mesh is highly breathable and wicks moisture away from the skin, which improves hot-weather comfort and makes the shirt feel cooler. The 100% polyester mesh is lightweight and durable, and the stretchable heat-transfer stripes let it move and wear like a normal t-shirt rather than a stiff safety garment.

The Radians ST21-3P has a rated service life of 25 washes maximum — after that, the high-visibility fabric and reflective performance may degrade below the ANSI/ISEA 107 Class 3 requirement, so the garment should be replaced. It's 100% polyester Birdseye mesh, and the heat-transfer reflective stripes are stretchable and integrated into the fabric.

Yes. Industrial Safety Products offers optional custom logo imprinting on the Radians ST21-3P, with a minimum order of 24 garments and a free set-up fee. Pricing is per location — for example, one-color front or one-color back imprinting is $2.50 per location, and DTF (highly detailed) front logos are $6.50 per location. Available imprint locations include the left chest pocket and the center back. Orders below the 24-garment minimum ship as non-logo items.

By design. The Radians ST21-3P's upper-left-front pocket deliberately has no reflective material on it so that a company logo or corporate imprint can be applied cleanly to the chest. The garment still meets ANSI/ISEA 107 Class 3 because the required reflective coverage is provided by the 2" horizontal stripe across the torso and the stripes on each sleeve. This lets employers brand the shirt without compromising its high-visibility rating.