Whale&reg; Mk-1000 Adult Silicone Scuba Dive Snorkel Seal Frameless Goggle & Mask with Tempered Glass for Free Diving, Snorkeling & Spearfishing, Clear FRAMELESS MASK GIVE YOU LOW VOLUMN! The frameless design is unique and the tempered glasses are main thing giving it so that it has a very low volume. When your mask floods, it takes little air to empty it out. Just get one and have a try! ANTILEAK GOGGLE KEEP WATER OUT! Whale free diving gear have soft and comfortable silicone skirt and it seals well. These adult mask are for diving, scuba dive, snorkeling and spearfishing, because any fast movement that push off the wall strongly will result in leakage. If it leaks on the side, you may need to adjust it to be right because it does not quite sit right on your face. AWESOME 100% SILICONE SKIRT AND STRAP! Whale diving mask has the sealing rim that contacts your face comfortably. Are you still remember a bad plastic mask is rigid and would make your face hurt as it seemed to suck to your face. Even the plastic frame would break and start leaking and no more playing in the water. Whale adult silicone scuba goggle is good and soft on your face and does not suck into your face and does not make your face hurt. GOOD VISIBILITY ANGLES & ANTI-FOG TEMPERED GLASS LENSES! The glass is so clear and the field of view is wide with the glass sitting close to your face. These tempered glass can anti-fog and a $3 anti-fog spray can deal with it. You may try to wash it with toothpaste or spit it without touching it by your hand and wash it. You also may need to dry it in shadow for next use. Good news, these tempered glass lens are anti-scratch. IT MAY FIT FOR BID HEAD! Whale adult scuba goggles have quite easy and adjustable straps and the straps do not slip once you have them adjusted. The strap is very easy to adjust with the very nice clamps. Do not worry about your large size head any more and add it to your cart!