ORTLIEB Saddlebag, £37.50, www.ortlieb.co.uk

Every now and again you find that you don’t want to carry a rucksack or panniers, nor do you want to overstuff jersey pockets — and that’s when this larger volume (2.7-litre) saddlebag makes sense. We managed to fit two 700c inner tubes, tyre inflator, multi-tool, lightweight jacket, snacks and wallet inside the fully waterproof compartment — which would have made it perfect for a balmy Dunwich Dynamo. But it's the sort of thing ultra-light tourers could pair with a bar bag.

It tucks nicely behind your saddle and bolts/buckles to it and the seatpost in seconds. Smaller 0.8 and 1.3-litre options also available.

PROS keeps gear dry and clean
CONS tight for some minipumps