It seems that the introduction of SkinnySleeves, those are the HydraSleeves designed specifically to fit 50 mm wells, has led to increased HydraSleeve use in Australia.
The following links were found...
Please see the very important instructions for retrieving SpeedBag HydraSleeves:
As a reminder, a sheet like this will be sent with every SpeedBag order.
Click here to download a copy speedbag-instruction-insert.pdf