The Reddit corpus covers several unrelated products that share the 'Mack' name, most prominently Mack's earplugs, which receive enthusiastic and repeated community endorsement for sleep use. Mack Weldon underwear also earns consistent praise for comfort and durability. However, at least one commenter noted a recent quality decline in newer Mack's earplug formulations, and the community acknowledges that disposable earplugs are not truly BIFL by nature.
Mack's earplugs and Mack Weldon underwear both earn strong community support for comfort and durability, but the disposable nature of the earplug lines and at least one reported recent quality decline prevent a full BIFL endorsement.
Mack's earplugs are praised across multiple product lines for comfort, noise reduction, and value, with many users reporting years of satisfactory use. Mack Weldon underwear is similarly lauded for long-lasting comfort and durability.
The main caveat is that disposable earplugs are inherently not BIFL, and at least one user reported a noticeable quality drop in recently purchased Mack's foam earplugs. Some users also experience ear irritation or discomfort, particularly side sleepers.
One long-time user noted that Mack's Ultra Soft foam earplugs recently underwent a noticeable quality downgrade, making them uncomfortable and less effective — prompting a search for alternatives.
A user who tried nearly every earplug on the market called Mack's their 'holy grail,' noting that adjusting the amount used (rather than a full piece) solved comfort issues for side sleeping.
Someone who spent time in a noisy recovery environment credited Mack's earplugs with blocking out everything and allowing them to sleep through the ordeal.
A Mack Weldon owner reported that jersey knit boxer briefs purchased roughly seven years ago show zero pilling or holes, making them among the most durable underwear they've owned.