What Our Gearhead(R) Experts Are Saying:"The Atajo is the layering piece I come back to every fall. The waffle knit adds just enough texture and loft to make it warmer than a plain jersey long-sleeve without the bulk of a midlayer, and the BCI cotton construction is soft and breathable enough to wear directly against the skin all day. Ribbed cuffs hold their shape through repeated washing better than a plain hem, which matters on a piece you're going to reach for constantly. The lifetime warranty from Cotopaxi tells you everything you need to know about how they stand behind it."The Cotopaxi Atajo Waffle Rugby Long-Sleeve Top occupies the most useful real estate in a layering system. Worn over a tee when the morning is cool and under a flannel when it drops further, it adds warmth through texture rather than bulk, which means it works in more situations than a dedicated midlayer without taking up more space in a pack or a drawer. The 100% BCI cotton waffle knit is soft and breathable against the skin, grown with a reduced reliance on pesticides and water compared to conventional cotton production. Ribbed cuffs hold their shape and cling cleanly at the wrist whether the sleeves are worn down or pushed up. The regular crew fit sits classic without being stiff, and the 24-inch center back length layers cleanly under outerwear without bunching. Backed by a lifetime warranty because Cotopaxi builds things they expect you to keep.