Musar do Rodzaju 9:3

By feeding all the animals in the ark for a full year, Noach himself had begun the process of repairing the damage done by Adam in the area of food. When Jacob prayed (Genesis 28,20) that G–d should give him "bread to eat and clothes to wear," he may well have referred to a world in which man would wear clothing made of light, and in which all the trees would bear fruit and their trunks would taste just as their fruit. Because Noach had commenced the process of repairing the damage to the production of food caused by Adam, he was given the right to improve his diet and that of mankind after him. He was allowed to include meat in his diet (Genesis 9,3). His son Shem, who had begun to repair the damage to the kind of clothing man was allowed to wear, merited that his descendants, Israel, when wearing ציציות on a four-cornered garment, could ignore the prohibition of mixing wool and linen. In other words, a linen garment may have ציציות made of wool. Ever since the dispute between Cain and Abel linen and wool symbolized their strife, hence the prohibition of mixing them. The people of Israel kept rising to higher spiritual levels until they qualified for food made in the heavens, i.e. the מן, Manna. The jewelry that the Jewish people wore from the time G–d revealed Himself until they forfeited it through participating in the sin of the golden calf, was symbolic of the כתנות אור Adam had worn before the sin (compare Exodus 33,5).