Mouldable silicone ear plugs fit over the ear canal, rather than inside it and are easily amongst the most comfortable ear plugs available. As a result of the tight seal that the silicone putty creates, these ear plugs are the number 1 choice for water-based activities such as swimming, bathing, water sports and float spas. Mouldable silicone ear plugs conform to the shape of your ears ensuring a perfect fit for every ear canal, and won't protrude from your ear. Because they're so comfy they're commonly used as sleeping earplugs (especially for side sleepers)!