Where are the GC long sleeve tees?

[+SmithyPeaknuckle]

I like some of the designs that GC has offered for t-shirts and I like to wear something geocaching related when I go caching. But my preference is to wear a long sleeve tee to protect against thorns and poison ivy. I once bought a long sleeve blue tee that was on closeout here, but since then I have not seen a long sleeve tee offered. I realize summer is coming and the hot weather (I live in NC) may discourage demand, but I'm waiting patiently for the sleeves.