The white Otis performance T-shirt is part of the REISS collaborative collection with sportswear label Castore. It's crafted from a breathable stretch fabric that's lightweight and quick drying. It's fitted with raglan sleeves then features the logos of both labels in a reflective finish for visibility in low light. Raglan sleeves. Crew neckline. Reflective logos. Close fit. Stretch fabric. Lightweight. Quick drying. The model is wearing a size M.