Ok Lisa, went to the Backcountry.com and went to the womens tops/jerseys and then when that page came up I put in a search for wool. On pages 1 and 4 are the items I was looking at. IcebreakerBodyFit200 OASIS crew long sleeve and also was the IcebreakerBodyFit260 Altitude Zip. Page 4 was the Kuhl Ridgerunner 1/4 zip long sleeve. I would post their links-I am not computer savy. The last 2 items are similiar and it looks like maybe the first item is thinner? THanks