Premier Protein 30g Protein Shakes, Vanilla, 11 Fluid Ounces (Pack of 4) – Add-on Item for $3.78 or $3.38 with S&S + Free Shipping

Amazon has Premier Protein 30g Protein Shakes, Vanilla, 11 Fluid Ounces (Pack of 4) for $3.98 as an add-on item.
With save and subscribe you can get it for $3.78 and if you have another 4 items this month the price will be $3.38
This is the best price I’ve seen and it’s better than Costco and Sam’s Club price.
https://www.amazon.com/dp/B00AQG3HJY/ref=sns_myd_detail_page?th=1