Traditionally, wool and cashmere have been among the warmest fabrics on the market. This is largely due to the structure of the individual fibers, which each have a hydrophobic, moisture-wicking exterior and an absorbent, hydrophilic core. This allows the evaporated moisture being produced from the body to be wicked away and held in the core as insulation without any feeling of wetness against the skin. Our sweaters work the same way except that we use fabric made from bamboo cellulose, which has remarkably similar thermal properties without the use of livestock. The multi-dimensional, heat-trapping knit structure is just the icing on the vegan cake.