Heat Reactive: The smooth interior leather responds to warmth. Whether from your touch or body heat, this collar transforms upon pressing, revealing a mesmerizing color shift that adds an intimate, personalized touch.

To activate the color-shifting effect, avoid getting the leather wet — the finish is moisture-sensitive.
Use dry heat (hair dryer, warm lamp, or heat pack around 30–40°C) for a few seconds to reveal the color change.
If wet, blot gently and let it air dry in a cool, shaded place.

Note: This product is measured manually, and there may be a slight variance about 1 cm.

Dimensions: