Knox Trekker £99.99

Canvas rolltop bag with faux-leather trim is lined so aced our shower test and should keep the contents dry — though the outer seems to take a while to dry. It comes with a helmet carrier and takes plenty of stuff, with a laptop pocket inside — though that was too narrow for our test laptop. It hides the weight reasonably well when fully loaded, but does flop about more when partially full. The real catch is that it’s not easy to get a properly comfortable fit.