yeah i was looking at those pictures and it made me think that it is one with a super thin base. if you look at this
picture it will give you an idea of how thin that yarn knits up by itself (it isn't the exact yarn but i think it would be a pretty good representation.) you can use them for gloves or fingerless mitts, i just think you will want to have a worsted or DK (like the knitty pattern mentions) yarn that compliments it so your mitts will have some weight to them. i do love using mohair as a compliment in gloves though because it makes them delightfully fuzzy!