The Astro is a crowd favorite with its nimble size. Easy to launch off the wake but easier to maneuver, the Astro has a ton of bang for your buck. 30 Gauge PVC Bladder. From UV Rash Vests for sun protection, to wetsuit and drysuit for thermal protection. Easy to launch off the wake but easier to maneuver, the Astro has a ton of bang for your buck. Fellow dedicated watersports enthusiasts waiting by the phone or via email with rapid response. From UV Rash Vests for sun protection, to wetsuit and drysuit for thermal protection. Mon-Fri after 3pm usually dispatched next work day. Sat, Sun & Bank Holidays dispatched following work day.