On this page there’s 4 highlights (premium only) outlining what Costco are doing right and wrong. (Tip: use the arrows above or on your keyboard to navigate all 45 ‘M-Commerce: Filtering Options’ design examples.)
The screenshot was taken June 24, 2015 and depicts Costco’s Filtering Options. In total, we’ve reviewed 39 of Costco’s design elements. To see them all, visit the full Costco UX case study.