Q-max 0.45 Cooling Fiber Story The larger the Q-max, the more heat that can be taken away. Why Choose Elegear Pillowcases Q-Max>0.4, you will feel "Oh! So Cool!" Q-Max>0.3, you will feel "Yeah, Cool!" Q-Max>0.2, you will feel "Just a little Cool!" Japan Cooling Touch Technology Pillowcases includes Jade Masterbatch. It absorbs the body heat and quickly lowers temperature by about 35 to 41℉. which makes the body feel cooling. Great For Your Skin and Hair Maintain skin moisture and elasticity Reduce facial wrinkles Say goodbuy to the frizzy hair ❄️【One Side is Q-Max>0.45 Japanese Arc-Chill Cooling Fibers, Other Side is 100% Knit Cotton Jersey.】 🧊【All Seasons Double-Sided Pillowcases】- Elegear pillow cases Queen size with a double-sided design, perfect for all seasons. One side is made with Japanese Arc-Chill cooling sensing technology fabric, silky and cool—perfect for summer, especially helpful for people who suffer from night sweats. While the other side is made of 100% Knit Cotton Jersey, softer and most comfortable than ordinary cotton—perfect for spring, autumn and winter, help you sleep better every night. 🧊【Keep You Cool All Night】- If you tend to wake during the night feeling hot and bothered, a cooling pillow cases is a good choice for you. Thanks to Japanese Q-Max >0.45 Arc-Chill Cooling Fibers, our cooling pillow covers can absorb your body heat and quickly lowers temperature by 35 to 41°F. You will think that you have found an iceberg on a hot day and fall asleep quickly. 🧊【Perfect for Hair & Skin】- Are you tired of waking up in the morning with a frizzy birds nest on your head? Our special cooling fibers material is tightly woven, which makes pillowcases anti-static, minimizes split ends, frizz, and dryness. These soft and silky cool pillow cases can also help to reduce facial wrinkles. It can reduce friction by 40% on average. Say goodbye to bad hair and skin days and hello to luxurious nights. 🧊【Easy Care & Cleaning】- Compared to the costly and bulky cooling pillows, our cooling pillow cases for hot sleepers is a better way to keep cool in the summer, easier to replace and clean. They are both hand and machine washable.(Please do not use this cooling pillowcase in a dryer.) And we recommend that you wash them inside a mesh laundry bag, to prevent entanglement during washing. Pillow Type: Bed Pillow Material: Arc-Chill Cool Fabric 3.0 Size: 20" × 30" Product Dimensions: 76.2L × 50.8W cm