5-pack of little boy's 100% cotton LEGO briefs for $6.77 on Amazon (comes to $1.35 per pair!)

Amazon has this 5-pack of little boy's 100% cotton LEGO brief underwear for $6.77 with free Prime shipping (comes to $1.35 per pair!) and free returns.  Comes in sizes 4, 6, and 8.  4.6 out of 5 stars over 75 customer reviews.  Even though my little boy is still in diapers, I bought these and will put them away because the price is fantastic.  Limit 3 packs per size.

(This item is eligible for the American Express points discount, fyi.  I ended getting an additional 30% off.)