Any map. Harveys or OS.
Patagonia capeline base layers. I still have one from a trip to Canada in 1998 – and seem to have worn it most weeks since. So comfy and wicking, bombproof.
Patagonia Goretex XCR trouses, with braces and in-built gaiters. Bombproof and sooo comfy and practical. Much missed.
Sombrio riding shorts. A decade of use, and finally showing the wear, but still comfy.
Montane Dyno – my 80% of the time jacket…
Lowe Alpine packs – single compartment, no zips, climbing model. I have had two since 1991, both were totally comfy and reliable, and have seen me on hundreds of hill days/rivers/weekends away etc.
Macpac Minaret – by todays standard, heavy. But utterly bombproof, comfy shelter in awesome purple colour, that lasted hundreds of nights and a couple of storms that flattened ‘better’ tents, two ML assessments, once round the world and a few nights on iffy beach pitches on Scottish Lochs.
Honourable mentions
Silva compasses, Petzl headtorches, Shimano Brakes, Hope Hubs, Mountain Equipment sleeping bags.