Hocosa Little Girls Organic Wool Sleeveless Undershirt Importado Made of soothingly soft KbT Certified Organic Merino Wool. Natural fibers breathe, maintaining a comfortable temperature in warmth or cold. Wicks moisture away from skin, keeping your child warm & comfortable. Even when wet, wool feels warm. Natural wool with lanolin gives self-cleansing properties for easy care. Light-weight. Comfortable under clothing or worn alone.