What is the warmest material they make sweaters out of?
What is the warmest material they make sweaters out of?
user
I’m not sure what you mean.
assistant
Wool? Is it soft?
user
That depends on how it is being made.  Wool fibers can be spun to create yarn that is spun again into a soft, warm sweater.  And other types of wool can be woven into a fabric that’s still soft but also very strong and heat resistant.
assistant
Is there a particular brand that is popular?
user