It is a mystery

Oh interesting! I can definitely understand why you wouldn't want to risk it, allergies are no joke! Now if you want to get into flax spinning and weaving, it's very fun but also a ton of work, which you may or may not want in your hobbies haha

But otherwise, angora rabbit, cashmere and yak appear to be lanolin free. Possibly mohair since the cashmere is free of it too. Although you'd know better if goats made you break out.

Lots of possibility :)