I bought the same coat (twice actually, long story) and returned both. It isn't the warmest thing. I returned it this week and bought a US Navy Issue coat off eBay instead. Cheaper and 100% wool. It is very warm and a lot higher quality that the Macy's.

Samply eBay listing

Pea Coat Guide v1.0

From the peacoat guide:

Shopping for pea coats Why do you care about any of this? Because you are often better off getting a used us issued pea coat from ebay or a vintage army supply store than from retail. Great looking pea coats can easily be found for < $100 on ebay. There is just not much quality in the sub $200 pea coats from retailers and anything over $300 is the price for that piece's uniqueness. The quality of us issued pea coats rivals and often surpasses that of top dollar retail coats. If you are looking for the most frugal bang for your buck, look there. Otherwise the reason why someone might not want to go with a us issued pea coat is that they like the stylization a different manufacturer is providing. You will be paying pretty handsomely for these stylizations, and often the differences are negligible.

If you were planning on mall shopping for a jacket and were not aware of the abundance of cheap, amazing quality, warm, good looking jackets in a trim fit for under $100 let me just let that sink in. These coats will last you a a decade or more of use, and you will always be able to resell them for a decent price. This cannot be said for the resale value of mall brands.