This wild number is perfect for all your child's essential swimming gear. Big enough for them to carry their towel, swimsuit, goggles  and armbands with a handy large pocket for keeping nappies etc dry after the swim.  
 My lovely model is 4 years old, it is suitable for 4-12 year olds.
I have used lovely, practical, high quality  oilcloth fabric in a beautiful fun wild animals  pattern that can be wiped down to keep  it clean.  It has adjustable brown straps, which attach with swivel clips  avoiding them becoming  uncomfortably  twisted  . It also features a very nifty teepee purse that clips onto the outside of the bag with a carabina  to keep a £1 handy for a locker. There is also a practical strap sewn into the bottom of the lining making it easy to pull it out and hang up to dry out after your swim. This avoids it becoming mildewed. 
 
To  close and secure against any water sneaking in,  just roll the top enclosure tightly two or three times  and clip together. This makes a great handle to hang it up.
 
The grey lining is made  from a strong water resistant polyester.  I have waterproofed all of the seams, that way it will keep everything inside dry, or if things are wet inside, that will be kept away from the outside shell.