D.K.
Hi M., Boy can I relate!! They always grow out of things so fast! Have you checked St. Vincent's & Goodwill? You might be surprised. Also, I know Penny's online has an outlet & clearance section, you might find them there or at Sears, Old Navy online or TJ Maxx & Marshall's stores. I know the latter two have saved me when I've searched high & low because my baby outgrew her snowsuit in January and all the stores had resort wear! They had 2 snowsuits & thank Heaven one fit! I think all moms relate. Good luck I hope you find something for him.
D.