Sture Denim Filter Tube

It feels and fits like your favorite BUFF® product. Engineered with a replaceable 3-layer BUFF® Filter that blocks 98% bacterial filtration efficiency, it stays in place in a built-in antimicrobial treated mesh pocket and is easily changeable. Ergonomically designed with 95% REPREVE® performance recycled fabric and 4-way ULTRA STRETCH for easy nose and mouth coverage without a claustrophobic or sticky feel. Simply pull it up and down as needed, no readjustment necessary.