We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 7 min read · Independent comparison
If you want a proven replacement set for Grind and Uproar on-ear headphones with a long warranty behind it, choose Sodorous Grind Earpads Replacement; if you need fresh cushions for Bose QuietComfort Ultra (and QC35-style) headphones with a softer-feeling protein leather and quick stick-on installation, choose Newbosstheory Replacement Earpads.
• Sodorous Grind Earpads Replacement — biggest strength: high-density memory foam with soft protein leather, built for all-day comfort on Grind and Uproar wired/wireless on-ear headphones, backed by a 24-month worry-free warranty and free lifetime technical support.
• Sodorous Grind Earpads Replacement — biggest trade-off: it fits only Grind and Uproar on-ear models, so it is useless if you own Bose headphones, and the listing is for the cushions only (headphone not included).
• Newbosstheory Replacement Earpads — biggest strength: premium protein leather and memory foam with a softness the brand says rivals the original, plus a peel-and-press installation that takes seconds.
• Newbosstheory Replacement Earpads — biggest trade-off: it is model-specific to Bose QuietComfort Ultra and the QC35/QC35 II family, and it is not compatible with other Bose models, so you must confirm your exact model before buying.
• Who each pick is for: Sodorous for Grind/Uproar owners who want a durable, well-supported refresh; Newbosstheory for Bose QuietComfort owners who want softer cushions and a fast, tool-free swap.
Sodorous Grind Earpads Replacement is a two-piece cushion set made from high-density memory foam wrapped in soft protein leather. The point of that combination is comfort that holds up: the foam compresses under your ear and then springs back to its original shape when the headphones come off, which the brand frames as part of what makes the pads long lasting. The leather layer resists tearing and flexes with the foam, so you are not replacing cracked, flaking covers every few months.
The second thing Sodorous leans on is isolation. The memory foam blocks outside sound from reaching your ear, which helps the headphones keep their original sound character instead of turning thin or hollow the way worn-out pads can. If you commute, work in a shared office, or just want a quieter bubble while you listen, that sealing effect is the reason to refresh the pads at all rather than keep living with flattened ones.
Who should skip it? If your headphones are not Grind or Uproar on-ear models, this set will not help you — the compatibility list is that specific. And if you want a different color, black is the finish here. I would also steer away anyone expecting a full rebuild kit; this is cushions, nothing more.
Newbosstheory Replacement Earpads: Who It's For
Newbosstheory Replacement Earpads are aimed squarely at Bose QuietComfort owners. The brand lists compatibility with the QuietComfort Ultra, QuietComfort 35 and QuietComfort 35 II, and it is equally blunt about the flip side: these are not compatible with other Bose models, so confirming your headphone model before you order is the whole ballgame. Get that right and the fit is described as seamless, with the pads aligning to the existing tabs.
The materials story is similar to any good replacement pad — high-quality memory foam under premium protein leather — but Newbosstheory's angle is softness and pressure relief. The brand claims the feel rivals the original cushions and that the design reduces ear pressure, which is the complaint most people have after a few long listening sessions with worn pads: aching, swelling, the urge to take the headphones off every hour. If your QuietComfort cans are still sonically fine but the cushions have gone hard and flat, this is the exact problem the set targets.
Installation is the other draw. The steps are simple: pull the old pads off, peel the backing sticker off the new dust covers, stick them down, then align the new pads with the tabs and press them in with a little force. Newbosstheory says the whole thing takes seconds and that beginners can handle it. There is no glue, no tools and no trip to a repair shop.
Who should skip it? Anyone with a Bose model outside that Ultra/QC35/QC35 II list — this will not fit. Also note the coverage difference: Newbosstheory backs the pads with a 6-month manufacturer warranty, while customer service promises a response within 24 hours if something goes wrong. The set is one count, so plan on one pair of cushions per order. And as with any replacement pad, the headphone itself is not included.
• Best for Grind/Uproar owners → Sodorous Grind Earpads Replacement. It is the only one of the two built for those on-ear models.
• Best for Bose QuietComfort owners → Newbosstheory Replacement Earpads. Compatibility covers the Ultra plus the QC35 and QC35 II.
• Best for warranty peace of mind → Sodorous Grind Earpads Replacement. A 24-month worry-free warranty and free lifetime technical support beat a 6-month manufacturer warranty.
• Best for a fast, beginner-friendly swap → Newbosstheory Replacement Earpads. Peel the sticker, align the tabs, press — seconds of work.
• Best for pressure relief on long sessions → Newbosstheory Replacement Earpads. The design is explicitly pitched at reducing ear pressure so extended wear stays comfortable.
• Best for all-day comfort and durability → Sodorous Grind Earpads Replacement. Memory foam that returns to shape plus tear-resistant protein leather is a solid long-haul combo.
• Best for isolation without losing sound → either one. Both use memory foam to block outside noise and preserve the headphone's original sound.
• Best for a no-doubt purchase → whichever matches your headphone. Fit is the deciding factor here; everything else is secondary.
In my opinion, the right buy comes down to one question: which headphones are sitting on your desk? If they are Grind or Uproar on-ear models, I would buy Sodorous Grind Earpads Replacement — the memory foam and protein leather combination is built for daily wear, and the 24-month warranty plus lifetime technical support is real reassurance on a part that wears out. If you own Bose QuietComfort Ultra, QC35 or QC35 II headphones, I would buy Newbosstheory Replacement Earpads instead, because the softer feel and pressure relief are aimed exactly at the fatigue that sends people shopping for new cushions, and the stick-on install is about as easy as it gets. Neither is a universal pad, so match the fit first and you will be happy with either.
FAQ
No. Sodorous fits Grind and Uproar wired and wireless on-ear headphones. Newbosstheory fits Bose QuietComfort Ultra, QuietComfort 35 and QuietComfort 35 II. They are not interchangeable, so check your model first.
No. Both listings are for the replacement cushions only. You reuse your existing headphones and simply swap the pads.
Newbosstheory describes a peel-and-press process with new dust covers and tab alignment that the brand says takes seconds. Sodorous also calls its installation easy and hassle-free, but Newbosstheory gives the more detailed step-by-step.
Sodorous offers a 24-month worry-free warranty plus free lifetime technical support. Newbosstheory offers a 6-month manufacturer warranty with a customer service team that aims to respond within 24 hours.
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