The team rucksack iii max is the ideal bag for training as it has 40 litres of great space and storage for all of your pool side needs it is made from lightweight waterproof fabric has a water resistant base and has wet and dry compartments to keep damp or sweaty garments separate the special feature of this bag is the roll down top which can be adjusted to increase or reduce volume the bag opens out for easy packing at the top and from the base the team rucksack iii max is durable