BASE Compression appears to be a legitimate company. The website features customer reviews and testimonials from users who have purchased and used their products. Customers have praised the quality and comfort of the compression wear, highlighting its durability and performance benefits. The company is Australian-owned and emphasizes ethical and responsible manufacturing processes. Additionally, BASE Compression offers a range of products designed for performance, recovery, and comfort. The presence of detailed product descriptions, customer feedback, and a professional website layout further supports its legitimacy.