NipGuards are a patented product guaranteed to prevent painful nipple chafing and abrasion for endurance athletes on long training runs. The Bulk Runner's Pack is perfect for the avid runner who trains with frequent long runs. An Individual Runner's Pack (10 pairs) is combined with an additional 90 pairs/refills for a total of 100 pairs of NipGuards. Offered at a discount to the regular price of NipGuards, the Bulk Runner's Pack comes nicely packaged in a custom black mesh bag. The mesh bag is washable, re-usable and a nice way to keep personal items organized in your gym bag.