Back in the summer I took my laptop to an event in a rucksack. It rained, my bag got soaked through and my laptop stopped working. Luckily it recovered after drying out but I could have saved myself several anxious hours if I’d have left my computer in a waterproof rucksack, like the one I’ve just tested from Swim Secure.

Admittedly, the Swim Secure bag is designed for kit, not computers, so lacks padding, but is surprisingly spacious and comfortable to wear as a rucksack as it has decently padded straps for both shoulders and waist.

The main roll-top waterproof compartment is plenty big enough for a large towel and a complete change of clothes. For smaller items there’s a zip-up front compartment, which is actually big enough for an iPad or a book giving the option to keep items separate if, for example, you have put wet kit in the bag.

In addition, the waist band has two useful zip up pockets. Not waterproof, but ideal for locker tokens, coins, keys, membership cards and other bits and pieces.

The bright orange colour won’t be to everyone’s taste but it’s a good colour to have on your back when cycling to a swim or for finding your bag amongst a pile of others. It’s the same colour as Swim Secure’s tow-floats but don’t mistake it for one of those. It’s not designed for swimming with.