Theory's Low-Carbon Regal Wool collection. Courtesy Moisture management, odor resistance, superior temperature regulation — the natural performance benefits of wool are ingrained in the consumer psyche, but few stop to think how the raw material contributes to greenhouse gas emissions. Theory’s new Low-Carbon Regal Wool collection is the product of an innovative methane-reduction pilot with one of the brand’s long-term partners, Congi Farm in New South Wales, Australia.