Step up your men's custom apparel game with the AS Colour Men's Organic Rib Singlet (5063G) — a slim-fit men's organic tank top built from heavy-weight 9.7 oz fabric made with 95% organic cotton and 5% spandex. Featuring a 2x2 rib construction, self-fabric wide binding, and a double-needle hem, this men's organic singlet delivers a premium, structured feel with just the right amount of stretch for all-day comfort. Available in classic Black and White, the 5063G is UPF 50+ rated and carries Amfori BSCI and AS Colour Organic certifications, making it a top choice for eco-conscious brands and custom apparel lines. The clean, minimal design makes it an excellent blank canvas for custom screen printing, DTG, and embroidery at Underground Shirts — and sizing down is recommended for a more fitted look. Whether you're building a custom men's activewear brand, designing festival merch, or launching a sustainable streetwear label, the AS Colour 5063G Organic Rib Singlet is the print-ready foundation your designs deserve. Shop Underground Shirts today to customize yours.