?WE UNDERSTAND HUMAN ANATOMY? Each ear tip is tapered at the front allowing for a deeper, more secure fit. The rear of the tips are slightly widened to flow with the natural groove of the ear. If these tips don't fit you, we understand! Contact us for an exhcange in size or for a full refund. ?MASTER FITMENT? We've mastered the fitment and accounted for every 0.1mm of memory foam when designing these ear tips. ?NEXT LEVEL SOUND QUALITY? Benefit from better active noise cancellation (isolation) and natural bass response. ?ISO-9 MEMORY FOAM? Only available on our Black Magic ear tips, ISO-9 blends comfort with durability, sweat resistance, and grip. The secret is a semi-permeable layer on top of the memory foam that feels invisible, but makes a world of difference. ?What's New - Black Magic Version 4.0? Black Magic tips are Super Soft, shaped More Ergonomically, and have been completely redesigned based on 1000+ of our last generation's user feedbacks. We've listened to you so you can listen better with your new Foam Tips!.