Hy HyVIZ Reflective Waterproof Children’s Blouson Yellow. Be safe, be seen with the Hy HyVIZ Reflective Waterproof Children’s Blouson. Offering a breathable yet fully waterproof jacket, the Hy HyVIZ Children’s Blouson is ideal for the winter season with an elasticated waist, fleece lined collar and adjustable touch tape reflective cuffs to help block out the cold weather at the yard or whilst riding. With a secure fit the Reflective Waterproof Children’s Blouson offers hidden buttons and two front pockets perfect for storage and keeping your hands and body warm during winter at the yard and whilst in the saddle. The blouson also features reflective strips over the arms and body for the ultimate safety jacket for children.