Bluboo dual

Unisex design suitable for women, men, teenagers, boys and girls. Excellent for workout, cycling, hiking, walking, running, sport, activities of fitness and travel, etc. Soft neoprene provides comfort and keeps your phone dry from accumulated sweat or even a light rain. 【Internal size reference】 3.5-4 inch 12.5cm X 6.8cm X 1.3cm 4.5-5 inch 14.2cm X 7.5cm X 1.3cm 5-6 inch 16cm X 8.5cm X 1.3cm (Note: If your have a full screen phone with face ID function, we don't recommend the longest phone side exceed 15.3cm ) 6-6.5 inch 17cm X 9.5cm X 1.3cm (Note: If your have a full screen phone with face ID function, we don't recommend the longest phone side exceed 16.5cm ) 【Adjustable】 Adjustable Velcro can fit most arm sizes , from 9 '' to 15.5 ''. 【High Sensitive Touch Screen】 【Reflective Strips】 The reflective strip helps to ensure your safety when use it in the eve