When knitting this sweater for my older son, I couldn't find some of the wool I had purchased, and had to purchase more. After I finished it, I found the first stash, and so knit the younger guy a similar sweater, but since there wasn't enough wool and the color (sapphire blue, Brown Sheep super wash worsted) had been discontinued, I bought a contrasting color. No, this isn't an ad for Human Rights Watch; we live in Michigan. For the longitudinal stripes, I knit length-wise. I'm happy with both results, and the older guy was complimented on his sweater at the Centre Pompidou!