These things have been sitting in my hiking boots for a week now, and even after a muddy trail, the inside actually smells fresh instead of like a swamp. They're doing a great job soaking up the sweat and killing that musty odor, so I'm grabbing another pack for my work bag.
Ruby L.★★★★★
Tossed two of these in my gym bag after a week of sweaty commutes and the musty smell is actually gone, plus the camo green looks way cooler than plain white inserts. The moisture absorption is doing its job too—my gear feels dry when I grab it, and the fresh scent lingers longer than I expected.
William★★★★★
My hiking boots were starting to smell like a locker room, so I tucked these inserts in overnight. Woke up to a genuinely fresh scent and the moisture was gone. They're still working a week later, which is more than I expected.