MARES - SXS Extension Tube TUSA Freedom Tri-Quest Mask 37 lb Travel Wing -

37 lb Travel Wing - Features low-profile dump valves and cylinder anti-roll bars

XL (50-57in)

Easy Clip can last up to 72 hours without changing batteries

as found on Phantom

Mesh padding for a classic / old school backplate

MARES - SXS Extension Tube TUSA Freedom Tri-Quest Mask 37 lb Travel Wing -MARES SXS Extension Tube The SXS Extension Tube can be added to the SXS Second Stage for increased benefits. The tube helps to muffle the sound of bubbles that exit the second stage when breathing. Also, it helps keep your second stage dry. No bubbles in front of your face allows for an unparalleled field of vision during a dive.