Fourth Element Xerotherm Beanie fins This hose method ensures you

This hose method ensures you add a much larger volume of gas

By holding your regulator hoses tightly against the cylinder

forming an airtight seal

a fabric originally developed for NASA

or breathing rate

Fourth Element Xerotherm Beanie fins This hose method ensures youStay Warm, Stay Dry: The Fourth Element Xerotherm Beanie The Fourth Element Xerotherm Beanie is a lightweight, low bulk thermal hat made from advanced Polartec Powerstretch fabric, offering outstanding thermal performance even when wet, making it ideal for diving and general outdoor use. This beanie is constructed from a high performance blend of 53% Polyester, 38% Nylon, and 9% Elastane. This composition delivers outstanding thermal performance.