On the face of it, this is a very functional, bargain-priced product.
However, it does not, as the accompanying text claims, offer "clear view of both sides of an Ordnance Survey map."
Unfortunately, the last few inches of one side have graphic instructions for the very basic use of a compass, which badly obscure anything beneath them. This seemed such a stupid piece of design that at first, I assumed I would be able to peel off these pointless instructions,and when that failed, I tried without success to rub them off.
It's a pity, as this is a robust, waterproof, budget product (although the lanyard is too short to allow the case to be turned sufficiently if it is hung round the neck). On the one occasion that I used it, I had to open the case three times to reposition the map. This would have been unacceptable, and defeating the object of the case, in the lightest rain, but in the driving hail and snow that I was experiencing, it did the map (and my navigating) no favours whatsoever.