The juggernaut continues to roll on for On Holding . On Tuesday, the Zurich-based sports brand reported another quarter of double-digit increases in both net income and sales in the first quarter, which it attributed to its “premium strategy” and “broad-based demand.” Among the standouts in the period was apparel , where sales rose 45.1 percent in the period. The Asia-Pacific region, led by China and South Korea, was also strong with sales increasing 44.4 percent. That region now accounts for more than 20 percent of the company’s overall volume. For the period ended March 31, net income increased 82.2 percent to 103.3 million Swiss francs from 56.7 million Swiss francs in the prior-year period, while adjusted profits advanced 75.3 percent to 123.6 million Swiss francs. Sales increased 14.5 percent sales gain to 831.9 million Swiss francs. This marks the first time On has exceeded 800 million Swiss francs in quarterly sales.…