Seamless Award Winning Founder & Director, Jason Diamond, has designed, concept, manufactured, warehoused, distributed, marketed and provided web merchandise solutions for promotional products clients over 20-years, in both Australia and internationally, ensuring our entire team are lead & driven by a top industry professional. What's seamless about Seamless Merchandise: We sell promotional products and corporate catalogue programs. It's our unique and all encompassing options that make us a 'seamless' choice for your brand.