For a proper outdoor wool sweater it ought to be a Gansey or a Guernsey, Gansey’s are from up around Robin Hood Bay, Flamborough Head, that sort of area, but a genuine hand-knitted one’s expensive, because they’re knitted on five steel needles, in the round, so no seams, and no front or back, so wear can be spread out. £460 is a wee bit out of my reach at the mo’, but if I bought one now, it would probably outlast me!
Guernsey’s are a bit cheaper, they’re not so complicated to knit.
For anyone interested in real local craft:
https://www.flamboroughmanor.co.uk/flamboroughmarine/ganseys.htm