Fast Mesh Sports Bag - Toolbag - Wetkitbag from Arena:
Large mesh bag made in stron nylon mesh, measures 55 cm x 65 cm. The bag can contain swimming accessories and can be worn as a backpack.
For your training utilities (kickboards a.s.o.)
Can be carried like a backbag
Best choice for your wet training utilities which can dry when stored inside.
65 cm x 55 cm