Specifications: 1. CLEANCOOL 庐 : Quick absorption , quick drying : (thanks to the multi-channel cross section of its fiber ) & Anti-bacterial : (thanks to the NANO silver inside its fiber) *Generally speaking, CLEANCOOL is same or even better than COOLMAX 鈥縡resh, but the prices only abt 2/3 of COOLMAX-fresh 2. COOLFIRST庐 : Quick absorption & quick drying (thanks to the multi-channel cross secton of its fiber, and the fiber is produced by latest fiber shaping technology ) *COOLFIRST is same or even better than COOLMAX, but the price only abt 1/2 of COOLMAX 3. WARMDRY庐 : Thermal & Light weight + Quick absorption & quick drying *Thanks to the unique technology to combine hollow fiber and multi-channel fabric together