For the ultimate, post-winter run when you first his the road, opt for a lightweight t-shirt that won't restrict you. Try Merrell’s Morpheus stretchy, breathable tee. Opti-Wick technology keeps your core from getting soaked with sweat. 20+ UPF fabric shields you from sunburn and a reflective logo protects you on night runs. Plus, it's comfortable enough to wear casually: grocery store, errands, your girlfriend’s apartment. You name it. ($25; merrell.com)
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