It is difficult to describe how useful this is , your phone slides inside an interior pocket face upwards so you should be able to see texts and take calls . Then you can drop your car keys and wallet into the bag , roll the seal over and close. Then rather than having to think where you are going to put the bag you can wear it round your waist. Now this design is as much for the walking outdoor market as for Watersports, hence it is in a grey colour that will happily blend in with your walking or skiing jacket. Nice alternative to a backpack and quicker to get to your phone if it rings. I do find the bag works better when there is something inside rather than empty. RRP is £25