Swimming Thermal Training Shirt; Finis, Inc. claims that this swimming shirt creates a natural drag effect to help build muscle endurance and elevate training. Its flexible fabric does not impede with stroke technique and does not put any added stress on the shoulders. Higher speeds are achieved when shirt is removed, helping re-create race-speed scenarios during training. Repetitive use will result in increased swim speeds and endurance levels. Features:

• BiPoly fabric provides warmth in the water without sacrificing range of motion while swimming

• Comfortable quick dry material helps shield you from the cold.

• Long sleeve design covers the entire torso.