Custom-Fit 37dB NRR Ear Protection

These earplugs provide certified 37dB Noise Reduction Rating (NRR) — the highest passive rating permitted for consumer-grade hearing protection in the UK and EU. Compact (2.5 cm × 1.2 cm), feather-light (4.2 g/pair), and made from biocompatible thermoplastic elastomer, they feature a streamlined, low-insertion-depth profile designed to sit comfortably within the outer ear canal without deep penetration. Includes two tip variants: ultra-soft silicone for rapid, hygienic reinsertion and responsive memory foam for gradual, pressure-free expansion — both fully washable and replaceable. The heat-moulding process is fast and foolproof: boil for 20–30 seconds, cool for 5 seconds, then insert and hold for 60–90 seconds while shaping. Once cooled, the form remains stable across temperature fluctuations and repeated cleaning cycles — retaining its custom contour without shrinking or hardening. Their three-layer physical noise management system targets airborne sound energy at multiple stages — surface deflection, internal dispersion, and final absorption — delivering flatter, more natural-sounding quiet than conventional plugs. Particularly effective in mixed-noise settings like home offices with street noise + appliance hum + video calls, or travel scenarios involving engine drone + announcements + seatmate conversation.