DRYU waterproof bags are so versatile and look really cool too. They can keep the wet out and they can keep the wet in! Depending on your situation.
I had one of these bags as a present from my daughter and it's perfect for my sporty active lifestyle. I have the 10 litre size and its big enough to get my workout gear and towel and water bottle in for my daily trips to the leisure centres where I teach group exercise sessions in Malvern. These dry bags come in 5, 10 and 20 litre sizes. They can be carried by the 'handle' on top 
or slung over your shoulder with the strap. 
In my pre DRYU life I would use non waterproof bags, resulting in wet car seats, as I would jump in the car after class, throw my bag (with wet kit/towel in) onto the passenger seat and it would soak through. Also carrying a bag over your shoulder with wet stuff in is pretty grim against your dry clothes and body so problem solved with my DRYU dry bag.
On other occasions I use my bag to keep the wet out. It's a perfect bag to sling over your shoulder on rainy days keeping valuables dry inside. I 'scoot' to work on days I don't have the car, wearing rain proof jacket and trousers, keeping my dry change of clothes inside my lovely blue waterproof bag!
I've been using this bag for a couple of months now and around Christmas time it generated a lot of interest in my classes from the participants, especially when I showed them all the bright colours they come in. Some of them added a DRYU bag to their Christmas wish list! 
One of them took hers to the New Year's Day sea swim she did in Holland! Keeping her valuables dry and free from sand on the beach and then keeping her wet clothes in it on the way home!
As a multi sport enthusiast I also find this bag great for open water swimming and pool sessions... Every triathlete should have one... A perfect eye catching little triathlon bag.
So I use mine primarily as a gym bag however these bags are also great for any out door activity, for example sailing and boat trips - keeping things dry on deck. Not only are they waterproof they are great for keeping dirt/sand etc out... So a must for the beach this summer. Think how great they are for camping and summer festivals!
With a range of vibrant colours and 3 different sizes there is a bag for everyone! Great gift idea.
