Simonnot Godard “The last French creator of Luxury Handkerchiefs” is perhaps the finest manufacturers of cotton pocket squares, or “pochettes” in the world. The fine weave, the sheen of the fabric and colors are unsurpassed. Once you have a classic white linen, consider a cotton pocket square from Simon Godard in light blue or another color that compliments your favorite jacket.
In addition to the 100% cotton they also offer a beautiful range of linen, linen/cotton, jaquard weaves and more. http://www.simonnot-godard.com/1en.aspx
They can be found at better men’s specialty stores and on-line retailers including Paul Stuart, Barneys and A Suitable Wardrobe.