This knitted cowl can also be worn as an infinity scarf. It uses fingering weight yarn held doubled throughout and incorporates a 1x1 rib, 2x2 rib along with increases and decreases.
Any sock yarn held doubled will work for this piece so pick your favorite three skeins. If you would prefer not to hold two strands of yarn together, use a worsted weight wool instead plus you will only need about 215 yards for each color.
If you want less of a seam, then utilize the Provisional Cast on. When you are finished knitting the piece, keep your stitches live and use the kitchener stitch to seam the cast on and cast off edge together.
This would be a terrific Summer Cowl for the AC office and restaurants. Great Stash Buster too.