Silicone – size-24mm-15-16, size-5mm-4g, size-20mm-13-16, size-25mm-1, size-15mm-19-32, size-1-6mm-14g, size-2-4mm-10g, size-22mm-7-8, size-19mm-3-4
Silicone is soft and squidgy - perfect for hat, helmet, headphone-wearing and sleeping. So comfortable you'll forget they're in!
