Large diameter purge valve for fast water clearing. The flow purge design uses a covered, wide purge valve to quickly expel water, reducing water remaining in the mouthpiece for a smoother breathing experience. Leak proof and antishock construction. Made from durable PC material that resists impact and wear, paired with a silicone waterstop valve plate to provide strong leakproof performance. Adjustable buckle and silicone straps. Designed to fit a range of head sizes with easy adjustment for a secure, comfortable fit. materials for durability and safety. Built to withstand regular use, ensuring longlasting performance. Compatibility and fit. The adjustable buckle and silicone straps enable a versatile fit for different individuals without sacrificing comfort or stability. Performance in varied conditions. Reliable in pool, calm coastal waters, or openwater snorkeling thanks to a robust, wearresistant design and effective purge and seal mechanisms. Use scenarios Beginner pool or calmwater snorkeling practice. Quick purge capability helps clear water after submersion, making sessions more comfortable and confidencebuilding. Family or group snorkeling trips. Adjustable straps accommodate multiple users with different head sizes, allowing shared use without sacrificing fit. Travel and outdoor snorkeling adventures. Durable materials and leakproof design offer dependable performance in changing environments while on the go.