This post will effectively serve as my official, RMRS review of Collars & Co. Having received a $50 gift card to Collars & Co that was able to be combined with a sale price, I decided to purchase my sixth offering from them. This time - despite my concern that they fail to inform you of the materials on their website - I purchased their flagship Dress Collar Polo. This is the only remaining Collars & Co item in my closet and it will be the last item I purchase from them. How long it remains in my closet has yet to be determined. Issue #1: Supbar Materials This shirt is 100% plastic. I expected it to be largely synthetic but it is, in fact, 100% polyester. I don't care what the marketing copy says, polyester is a thermal insulator and will always wear hotter than cotton unless and until it has soaked up at least 50% of its weight in moisture. Even their mostly-non-synthetic offerings (my previous 5 items from them) were made from subpar materials, in my opinion, exhibited by both the feel of the fabrics plus a higher-than-average tendency to pill. Issue #2: Subpar Manufacturing Almost every single item from them showed a lack of quality in manufacturing - loose stitching, uneven stitching, visible flaws, etc. Even this one has a visible flaw - an unsightly bit of threading on the back where the tag is sewn. Issue #3: "Revolutionary" Collar Their "revolutionary" collar only applies to certain products - as their primarily-cotton polo shirts had a collar that was quite disappointing. The secret to the dress Collar polo is simply cardboard fused into the collar. It makes for an oddly thick and stiff collar - which looks good, admittedly, though at the cost of comfort and care. A shirt that would ordinarily be quite fine with a cycle in the dryer must be hang-, line-, or flat-dried to avoid damaging this revolutionary collar. And is there reinforced stitching around the collar tip and/or removable collar stays to help ensure the collar looks great through years of wear? Of course not.