This multifunctional phone armband sleeve features an adjustable velcro strap accommodating arm sizes from 8” to 16”, ensuring a secure fit for all users without slipping or constriction during activities. Constructed from a breathable air mesh and stretch-resistant neoprene polyester blend, it offers a lightweight, water-resistant, and sweat-proof experience while remaining odor-free and flexible. Ideal for a range of activities including gym workouts, running, cycling, hiking, and more, this armband supports both small and larger arms comfortably. Its design allows it to flex, twist, and fold without warping, making it perfect for diverse exercise routines. Each armband undergoes rigorous testing for quality assurance.