Rack top bag
This trunk pannier bag from Arkel is possibly made by rugged men in checked shirts who used to fell wood by day and fight bears in their spare time but are now putting all their efforts into constructing super tough bicycle luggage from a log cabin somewhere in Canada. Possibly (would such men call it a Tail Rider? - ed… hmm possibly I suppose).
Topeak’s MTX waterproof trunk bag is brilliantly designed and a delight to use when paired with the brand’s range of compatible carriers thanks to solid construction and the clever patented quick track mounting system, combining limpet like security and effortless release. Extensive internal padding gives perishables a sporting chance of surviving rutted roads and bridle path alike but I’d stop short of risking cameras and other sensitive electrical equipment.