The 6691 Cooling Arm Sleeves are designed for cooling relief and added leverage when lifting bulky items. For an instant cooling effect lasting up to 2 hours, activate sleeves with water. When worn dry, the soft, stretchy performance fabric draws sweat away from the skin, which also helps regulate body temperature. Whether wet or dry, the breathable knit fabric provides UPF 50+ sun protection from harmful UV rays and guards against light abrasions. That means they are ideal for landscaping or hauling brush. To help workers get a better handle on bulky items, silicone grips have been added to the forearms to decrease slipping against surfaces like cardboard boxes. Reflective accents bring increased visibility to low-light conditions while an anti-odor treatment keeps things fresher between washes - a practical choice for active wearers. Sleeves come in a convenient two-pack including both left and right arm sleeves. Ideal for delivery drivers and warehouse workers who regularly lift and carry boxes, tools or heavy objects, this gear provides essential support and comfort throughout the day, helping to reduce strain and enhance productivity on the job.