1. Mudder 6 Pairs Earbuds Replacement Ear Tips Silicone Earphone Tip for Powerbeats 2 Wireless Headphones, 2 Colors, 3 Sizes (Click Link to Check Price on Amazon)
Editor's Rating : 9.6 out of 10
Inner diameter: this set of earbuds replacements inner diameters are all approx. 4.5 mm, with the error of 0.1 mm, fit for powerbeats 2 wireless headphonesEar tips of different sizes: these ear tips have 3 kinds of outer diameters, 10 mm, 12 mm and 14 mm, can fit for most ears and you can choose the one that fits you most

2. Eartips Rebound Memory Foam Tips Silicone Earbuds Noise Isolating Replacement Earpads for All Models In-ear Earphones ( Fits 4mm-5.5mm Diameter Nozzles, 6 Pairs ) (Click Link to Check Price on Amazon)
Editor's Rating : 9.1 out of 10
3 Size and 6 Pairs-Package S/M/L 3 size ,3 pairs foam tips and 3 pairs silicone tips, you don't need to worry about the compatibility with your ear. You can choose the size freely, also, you can choose foam or silicone tips based on your requirements.Convenient and comfortable-Easy to install and change.The foam rubber tips made of soft and elastic material, it will filled with your ear canal perfectly but you won't feel swelling.

3. Znoble Premium Replacement Foam Earphone Earbud Tips - Isolation (Red,3 Pairs, S/M/L)&Silicone Replacement Earphone Tips,In Ear Headphones Earphones(Black,3 Pairs,S/M/L) (Click Link to Check Price on Amazon)
Editor's Rating : 9.3 out of 10
Memory Foam:Self-stretch deformation, Filling all the space and maintain the shape，Absorb the impact force, Reduce the vibration, Low rebound releaseMemory Foam:Transparent foam hole structure, Good air permeability，Never allergies, Non-toxic, No side-effects

4. Earphone Tips New Bee Premium Replacement Earbud Tips Inner 4.9mm [3-Pair] + Silicone Earphone Tips Inner 4.9mm [3-Pair] for Headphones with 5mm-7mm Tip - Black (Click Link to Check Price on Amazon)
Editor's Rating : 9.9 out of 10
SOFT AND COMFORTABLE TO WEAR, NON EXPANDING EAR, NO PAINFUL EVEN WEAR ALL THE DAY: Tips are able to expand slowly, enhancing the comfort of the earphone to wear. Durable and general Soft and fitting your ear, long time to wear without swelling.

5. eBoot Replacement Eartips Earbuds Silicone Earpads Ear Tips Set for Powerbeats 2 Wireless with Earphone Carrying Case (Click Link to Check Price on Amazon)
Editor's Rating : 9.1 out of 10
Ear tips material: these eartips are made of silicone material, elastic to touch Strong and durable to use, comfortable and soft for your ears