Siporex Block

The Siporex Block is a reusable silicone coffee sleeve that can be used to keep your coffee warm and fresh. It is made from silicone and has a soft and flexible feel. The Siporex Block is a reusable sleeve that can be used to protect your coffee mug, travel mug, or thermos from heat, stains, and odors. It has a built-in handle that makes it easy to carry. The Siporex Block is available in a variety of colors and prints, which can be a fun addition to your morning coffee.