Castore is a British sportswear brand, and this is gym and off-duty clothing rather than field kit. It sits alongside the main catalogue rather than inside it, and it runs on held stock, so sizes come and go rather than sitting on a full curve - if the size you want is showing, take it.
The useful pieces for anyone who works outdoors are the synthetic layers: Adapt training tees and the Scuba quarter-zip dry a lot faster than cotton, which makes them reasonable for travelling, the range or the drive home. Flex lightweight joggers, Scuba joggers and Tech training pants cover the same ground.
None of it is built for the hill. Bright training colours are wrong in cover, and a gym top has no wind resistance and no durability against thorn. If you want a base layer to stalk in, go to next to skin; for a midlayer, fleeces or outers and midlayers.
