Ortlieb A5 Size Waterproof Transparent Document Case  £13.50

I bought this waterproof document case to keep printed extracts of OS maps dry when out walking in the Scottish hills. The document case has performed faultlessly on my last three outings, all of which were conducted in heavy continuous rain. I can recommend this product to anyone who wishes to keep documents dry whilst out walking.

Perfect for carrying and convenience. I use this case for maps rather than documents. As usual with Ortlieb, it's about as watertight as this sort of thing can get. The A5 case is probably too small for a full sized map, but if you print your own digital maps it's just right. Fold once and it slips easily into the chest pocket of most jackets.

Ran a marathon in snow and rain with my map in this case - dropped it in mud and then simply washed it off - document remained perfectly dry.