Women’s Lululemon Run Under Long Sleeve Reversible Black & Gray Athletic Top Size Medium Great Condition Thumb holes Made of super soft Rulu (aka running luon) this crew neck long sleeve (LS) tee is reversible and intentionally long in length, which makes it perfect for layering over running tights. Also, it's an excellent base layer when we find ourselves venturing out for a run or cycle in chilly temps. Key features reversible as is our mood made of Rulu (aka running luon) thumbholes mean sleeve stay put and wrists stay warm can be worn on its own or as a base layer in cooler temps long length covers your rear and is great for layering over running tights