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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want to revive a pair of aging Sennheiser over-ears with cooling gel comfort, choose WC Freeze PC38X; if you need fresh, secure memory foam tips for your Samsung Galaxy Buds, choose COMPLY TrueGrip MAX. They solve two completely different problems, so the right pick comes down to what's actually sitting on your head.
• WC Freeze PC38X — biggest strength: Dual-layer cooling gel plus a breathable sports-fabric and PU leather hybrid, in a thicker pad that adds space inside the cup for long gaming or listening sessions.
• WC Freeze PC38X — biggest trade-off: It only fits the specific Sennheiser and Massdrop models on its compatibility list, so it's useless if you own anything else.
• COMPLY TrueGrip MAX — biggest strength: Comply memory foam that molds to your ear for a secure in-ear fit and strong passive noise isolation, sold as three pairs with a magnetic carrying case.
• COMPLY TrueGrip MAX — biggest trade-off: It only fits Samsung Galaxy Buds3 Pro and Buds4 Pro, and foam tips are a wear item you'll eventually replace.
• Who each pick is for: WC Freeze PC38X is for anyone whose Sennheiser or Massdrop headset has flattened, cracked, or uncomfortable stock pads. COMPLY TrueGrip MAX is for Galaxy Buds owners who want a more locked-in fit and better isolation.
The WC Freeze PC38X is a replacement earpad set built around one idea: keep your ears cooler and more comfortable than the pads that came in the box. The enclosure combines memory foam, PU leather, and a dual-layer cooling gel, with the gel split into an interior layer and a top layer. On top of that sits a hybrid cover of sports fabric and PU leather, which is the breathable half of the equation. The result, as designed, is a pad that's meant to feel less hot and clammy over a long session than a plain leatherette cushion.
The second thing that stands out is thickness. These pads are deliberately thicker than the original Sennheiser pads, which creates more open space inside the ear cup so your ears are less likely to press against the internal driver housing. If your current pads have gone flat and your ears now touch the inside of the headset, that extra depth is the fix you're probably looking for. WC also uses reinforced stitching and upgraded PU leather, aimed at resisting the cracking and flaking that kills stock pads over time.
Compatibility is where you need to pay close attention, because it's both the selling point and the limit. The list is long: HD599, HD599SE, HD598, HD598SE, HD598CS, HD598SR, HD595, HD579, HD569, HD560S, HD559, HD558, HD555, HD515, HD518, PC350, PXC350, PXE350, PC360, PC363D, PC373D, HD380, HD380-Pro, Game Zero, Game One, G4ME Zero, HME95, HMEC250, PC37X, and PC38X. If your headset is on that list, you're set. If it isn't, skip this entirely — it is not a universal pad.
Installation is handled with a step-by-step video that walks you through pulling the old pads and seating the new ones, which matters because swapping pads on these Sennheiser frames is fiddly the first time. Beyond that, WC notes it donates 10% of profits to charity each month, a detail some buyers appreciate.
Buy it if: you own one of the compatible Sennheiser or Massdrop models and want cooler, thicker, more durable pads for marathon sessions. Skip it if: your headset isn't on the list, or you're happy with your current pads.
The COMPLY TrueGrip MAX is a completely different animal: premium memory foam replacement ear tips for true wireless earbuds, sold as three pairs in black, medium, with a magnetic carrying case included. The core of the product is the foam itself. Comply memory foam is designed to adapt to the shape of your ear canal rather than forcing your ear to adapt to a silicone tip, which is the whole reason people switch to foam in the first place.
That shape-adapting behavior delivers two benefits. First, a secure fit that stays put during workouts and daily use without constant readjustment — the tip is engineered with an optimized height to seat properly and hold. Second, noise isolation. Foam physically blocks external sound better than a loose silicone seal, and the payoff is that you hear more clarity and bass at lower volumes because you're not fighting background noise. For anyone who commutes, flies, or works in a noisy room, that's the real upgrade.
Compatibility here is narrow and specific: Samsung Galaxy Buds3 Pro and Buds4 Pro. That's it. The product description also references AirPods Pro 1st and 2nd Gen in its fit language, but the compatibility field lists only the two Galaxy Buds models, so treat the Galaxy Buds pairing as the confirmed use case and verify before buying for anything else.
Care is worth reading before you commit. Comply says to clean the tips gently with warm water and a soft cloth, or use the Comply cleaning kit sold separately, and to avoid alcohol-based cleaners or lotions because they degrade the foam. That's the trade-off with foam: it's comfortable and isolating, but it's a consumable. Over months of use, foam tips compress and eventually need replacing, which is why the three-pair count matters — you're buying a supply, not a permanent part.
Buy it if: you own Galaxy Buds3 Pro or Buds4 Pro and want a more secure, better-isolating fit. Skip it if: you have different earbuds, or you prefer the wipe-clean durability of silicone.
• Best for over-ear Sennheiser owners → WC Freeze PC38X. It's the only one of the two that fits a headset.
• Best for true wireless earbud owners → COMPLY TrueGrip MAX. It's the only one of the two that fits earbuds.
• Best for hot, sweaty long sessions → WC Freeze PC38X. The dual-layer cooling gel and breathable sports fabric are designed for exactly that.
• Best for workouts and movement → COMPLY TrueGrip MAX. The secure-fit design is built to stay seated without readjustment.
• Best for blocking outside noise → COMPLY TrueGrip MAX. Memory foam seals the ear canal, which silicone tips often don't.
• Best for worn-out, flattened stock pads → WC Freeze PC38X. The extra thickness restores space inside the cup.
• Best for a multi-pair supply → COMPLY TrueGrip MAX. Three pairs plus a magnetic case means spares on hand.
• Best for a one-time, long-haul fix → WC Freeze PC38X. Pads are meant to last, not to be swapped monthly.
In my opinion, these two don't really compete — they serve different owners, so "which is better" is the wrong question. If I owned a Sennheiser PC38X, PC37X, HD599, or any other model on that compatibility list and my stock pads had gone flat, I'd buy the WC Freeze PC38X without hesitating; the cooling gel, extra thickness, and reinforced build target the exact problems those headsets develop. If I owned Galaxy Buds3 Pro or Buds4 Pro and wanted a firmer, quieter fit, I'd buy the COMPLY TrueGrip MAX, three pairs and all. Match the product to the device on your head and you can't go wrong.
If your original pads are flattened, cracked, or hot, yes — in my opinion. You get cooling gel, a breathable sports-fabric hybrid, and more thickness for ear clearance, which stock pads don't offer.
The compatibility data lists Samsung Galaxy Buds3 Pro and Buds4 Pro. The fit description mentions AirPods Pro 1st and 2nd Gen, but since the confirmed compatibility field names only the Galaxy Buds models, verify your specific earbuds before buying.
Foam compresses over time, so plan on replacing them periodically — that's why the TrueGrip MAX comes as three pairs. Clean with warm water and a soft cloth, and avoid alcohol-based cleaners or lotions.
It depends on your device, not your preference. Over-ear Sennheiser or Massdrop headset → WC Freeze PC38X. Galaxy Buds3 Pro or Buds4 Pro → COMPLY TrueGrip MAX. Check the current price on Amazon before you commit.
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