It's not the dive into 50 degree water that bothers you, what really gets you is the painful lack of anything cozy to slip into afterwards. The Reef Cold Dip 12 Long-Sleeve Shirt is there there to keep you toasty during pre-plunge psych-ups and post-dip warm-ups on cold water coasts. Pre-washed for added softness, this comfortable cotton flannel is the perfect go-to for late-season days by the water, with two chest pockets that fit lots of handwarmers.