The number of «packs» a person can display is a result of the number of bands of fascia (the connective tissue above all your muscles) that crosses the abdominal region. (blog.fitplanapp.com)
You can choose from a wide range of bands in leather, silicon, fabric, and metal. (digitaltrends.com)
You can find hybrid smartwatches in a variety of sizes and finishes with bands of different quality across the price spectrum. (tomsguide.com)