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2017 Gear 360 available here: https://goo.gl/jAGyc4
Ricoh underwater case here: https://goo.gl/5NDjjO
Please be careful!  The 2017 Gear 360 is NOT waterproof.  I used the Ricoh Theta hard case.  Ricoh says the case is only water resistant not waterproof, although it seems to work for water play or for very shallow depths.  
Remember - you can pause the video at any time to look around.