Product description NAROO F.U Plus Copper β Copper Yarn Filtering Face Mask Breathing is the heart of athletic activity. For nearly 20 years, we at NAROO have provided innovative breathing solutions to protect athletes everywhere. About NAROO We are lifelong outdoors people just like you. We began to notice how breathing difficulties held us and our fellow athletes back. In 2002, we decided to create our own breathing solutions β and so NAROO was born. NAROO is a pioneer in the field of sports masks, consistently studying breathing and developing innovative technological masks. 20 years of research, design, and innovation. We fuse technology, function, and design into our sports masks that support and protect athletesβ breathing. Products features Copper Technology Using copper technology that has been trusted for centuries worldwide, NAROO incorporates copper yarn for further protection. Exclusive Filtering Fabric MICRONET fabric is the perfect balance of protection and breathability. The special knitted fabric filters 99% of particles starting as small as 1.7 microns. Even during exercise, the filtering fabric is breathable, allowing you to perform your best. Easy-breathing Face Cover Backed by Research Because sports people need more oxygen during exercise, we designed NAROO F-Series masks to not only have top-notch filtering capabilities, but to also be easy-breathing to ensure top oxygen intake. F.U Plus Copper F.U Plus F5s N0U Buying Options Buying Options Buying Options Add to Cart Customer Reviews β β 10 β Price β no data β no data β no data $39 00 Line Filtering Filtering Filtering Extreme Climate All Weather All Weather All Weather Hot Weather Thickness Light Light Medium Thick Super Light Breathability Breathable with some resistance Breathable with some resistance Breathable with some resistance Extremely breathable Anti-fog Reduces fogging on goggles Reduces fogging on goggles Reduces fogging on goggles No anti-fog functionality Shape Face Mask Face Mask Face Mask Face Mask