N-rit cooling scarf is a great way to cool down yourself during the hot summers or while enjoying indoor, outdoor activities and sports. It's perfect for running, jogging, hiking, biking, working outdoors, gym exercises, etc. It's also great for headaches, sore muscles, and hot flashes.N-rit cooling scarf features a unique and effective Crystal Polymer Cooling Technology, which helps you stay cool by keeping the cooling scarf wet. The crystals have high absorbability, which is perfect for those who tend to sweat a lot.It is very easy to use. Simply activate the cooling technology by soaking the cooling scarf in the water for about 5 minutes until the crystals fully absorb the water, then gently remove any excess water. Wrap it around your neck, head, wrist, etc. You can even keep it in the freezer for a cooler effect during those hot weathers.It is made from high quality cotton and polyester material that is durable and semi-permanently reusable. It's reusable up to 30 times by reactivating it with water. The materials are non-toxic and safe for daily use. Please do not soak the scarf for too long as the stitch could come undone while absorbing excessive water. Do not use seawater or salt water.The cooling scarf is about 42 x 2 inches and very lightweight. Please hand wash with warm water and soap after each use for longer durability. Beat the heat this summer while staying stylish with unique designs and colors with N-rit cooling scarf!