5StarDeal via eBay offers the Trademark Home Multicolor EVA Foam Exercise Mat 8-Piece Set, model no. 80-32321, for $16.99 with free shipping. That's the lowest total price we could find by $4, outside of the deal below, although we saw it for $4 less in August. This waterproof mat is made of anti-fatigue shock absorbing foam.
A close price for Amazon Prime members: Amazon charges $16.44 with free shipping.
Shipping: Free Shipping