1.4-in-1 Waterproof, Anti-Shock, Anti-Cold, Anti-Dirt Lens Pouch. Belt Loop for convenient carrying. 2.4-in-1 Waterproof, Anti-Shock, Anti-Cold, Anti-Dirt Lens Pouch. 3. Belt Loop: For convenient carrying. 4. Diving material is a synthetic rubber foam. It has the characteristics of fine, soft, elastic, shockproof, heat-preserving, impermeable and airtight. This lens bag is made of high-grade neoprene, which is more convenient to carry than a rigid lens barrel, and saves space in a suitcase or other bag. A hook is standard and a belt can be worn, which is convenient for hanging other bags or wearing a belt, and it is convenient to change the lens. Use scenarios: - Travel and luggage protection for lenses, keeping them safe from moisture, dirt and impact. - Diving or outdoor shoots where protection from water, cold and dirt is important. - On-location lens changes with easy access via the belt loop or hook for quick, organized gear management.