To maximize ROI, negotiate based on Tiered Pricing; typically, orders exceeding 1,000 pairs per color can reduce unit costs by 15-25%. Consider SKD (Semi-Knocked Down) shipping if local assembly offers tax benefits, though most trainers are shipped as finished goods. Be mindful of molding fees—if you require a custom sole design, expect an upfront cost of $1,500-$3,000 per size mold. To save costs, utilize the supplier's existing open-mold designs and focus customization on the upper materials and branding.