Buff Adult Filter Face Mask - Face masks have become an essential accessory for an active daily life. Designed with easy change BUFF(R) Replacement Filters that block 98% of airborne particulates and back-of-head adjustable elastic bands that eliminate discomfort behind the ears - the BUFF(R) Filter Mask improves active fit and function. Technically built with 4-Way ULTRA STRETCH CoolNet UV+ fabric. Not intended for medical use 95% Polyester, 5% Elastane HeiQ V-block antimicrobial interior mesh fabric treatment UPF 50+ sun protection Customized fit with adjustable back-of-head elastic bands Wicks moisture and dries quickly Extremely lightweight and highly breathable Adult one size - head circumference size 52cm to 63cm Filters offer 98% bacterial filtration efficiency Each filter can be used for a maximum of 24 hours Filter life may vary based on usage and environment Style: 1266