elpinn PRO's premium bolero-style arm sleeves are crafted with soft, semi-transparent 40D sheer fabric that covers the shoulders and arms for a smooth, elegant, and lightweight fit suitable for daily and outdoor wear, designed with a flexible construction that stays in place without slipping or rolling to allow unrestricted movement ideal for golf, driving, or other active outdoor activities, made from cooling-touch, breathable fibers with UV-blocking technology to keep you fresh and protected under the sun, featuring lightweight sheer arms that subtly reveal the natural skin tone for a photo-friendly, natural, and flattering look during golf, travel, or everyday wear, reusable and tear-resistant for long-lasting use with easy care instructions to maintain quality, and proudly made in South Korea using 100% premium Korean-sourced materials for trusted craftsmanship.