[b]Mareep:[/b] It's wool is statically charged, probably wouldn't be the [i]best[/i] for wool, but sheds every summer- potentially easy to collect?
[b]Flaaffy:[/b] Specifically farmed for their wool to make high-quality clothing.
[b]Jumpluff:[/b] It has cotton spores, something something cotton wool?
I was thinking something about [b]tauros[/b] hair for Wool too? I donno. Bulbapedia doesn't give anything about it being used for any sort of wool/fur based industry.
[b]Blissey[/b] Is said to have soft, fluffy fur but they already really have a job in the Pokemon workforce.
I could argue that the Purple Mane fur of [b]Raikou[/b] would be super fucking valuable xD Also could be said for [b]Suicune[/b], but Entei's mane is apparently smoke so.
[b]Wurmple[/b] and [b]silcoon[/b] could probably make fabric from their webbing, as could well.. Most araknid/web spinning Pokemon.
I feel like [b]Mamoswine[/b] fur would be [i]fantastic[/i]. [b]Sewaddles[/b] line are good sewers and probably use their silk for wool themselves.
[b]Cottonee[/b] Line, for the same reason as Jumpluff, cause, Cotton. [b]Bouffalant[/b] as well, big puffy hairstyle. [b]Eldegloss[/b] is the cotton pokemon I was thinking off, then there's obviously [b]Wooloo[/b], but it's evolution [b]dubwool[/b] apparently has really [i]bouncy[/i] fur.