The Hilye of the Prophet Muhammad (PBUH)

Transmitted from Ali [son-in-law of the Prophet], may God be pleased with him, who, when asked to describe the Prophet, peace be upon him, would say: He was not too tall nor too short. He was medium sized. His hair was not short and curly, nor was it lank, but in between. His face was not narrow, nor was it fully round, but there was a roundness to it. His skin was white. His eyes were black. He had long eyelashes. He was big-boned and had wide shoulders. He had no body hair except in the middle of his chest. He had thick hands and feet. When he walked, he walked inclined, as if descending a slope. When he looked at someone, he looked at them in full face.
Between his shoulders was the seal of prophecy, the sign that he was the last of the prophets. He was the most generous-hearted of men, the most truthful of them in speech, the most mild-tempered of them, and the noblest of them in lineage. Whoever saw him unexpectedly was in awe of him. And whoever associated with him familiarly, loved him. Anyone who would describe him would say, I never saw, before him or after him, the like of him. Peace be upon him.

From: http://www.zakariya.net/resources/hilye.html