Will this yarn work for this pattern?

i’ve got some of this http://www.ravelry.com/yarns/library/brown-sheep-cotton-fine

and i’m wanting to do this pattern http://www.bevscountrycottage.com/bevs-snuggle-booties.html

The brown sheep might actually be a little thin, but I think it would work up on size 4s. You can try it and see.