The National Geographic™ Snorkeler Swordfish 6 Masks are part of the Expedition Series products and are extremely popular in the Combo (mask & snorkel) configuration as they are in the Tunny 2 Sets (L/XL - Mask， Snorkel & Fins). The quality is equal， or greater， to what you'll find at dive shops. The Mask is made from Hypoallergenic， 100% silicone and features tempered lenses for distortion-free clarity. Lightweight frame with a pliable and non-feathered nosepiece for ease of draining and feathered edge seal on the mask skirt. The strap is flexible and replaceable with a three-point hold and ratchet quick lock. Available in 3 colors. Blue/Clear Silicone， Black/with Clear Silicone and Yellow/with Clear Silicone. Available in 1 size; Standard fitting most adult faces.

MASKLenses—CE-temperedFrame—lightweight Delrin™ and plasticsMask Skirt—feathered-edge sealNosepiece—pliable and nonfeathered for ease of drainingMask Strap—FLexible and replaceable with 3PH™ (3-Point Hold)Mask Strap Adjustment—RQL™ (Ratchet Quick Lock)