Thinline English ReinsNon Slip English Horse Reins Provide your horse with the softest and most secure connection with our specially designed reins. Quiet stability of hand to bit contact is the key goal of all riders. The challenges of holding a rein can create tension. When the hand is tense, this tension moves from the hand all the way up to the shoulder. Losing a rein in a key moment is something we all wish to avoid. Our reins are wrapped in our no slip ThinLine foam.