Mountain Hardwear Camp & Hike Lamina Eco AF 30F/-1C Sleeping Bag Undyed Short RH OS8181107SHTRH. But there’s more to this sleeping bag than a little green here and there. In fact there’s no color at all. The Lamina Eco AF is undyed to reduce the water footprint. And on top of that it’s made with a recycled shell lining insulation and trims. ‘Eco’ alone wouldn’t quite do it justice.