Our patented hot cup sleeves stick to the cup with heat–activated adhesive. Its corrugated design releases heat around hand while cool air is drawn in. Features include: Coffee Clutch® - Corrugated construction provides superior insulation. Wave Sleeve™ - Fluted design is easy to grip. Thermo Grip™- Embossed design allows air flow, while keeping hand cool. Non-slip textured grip. Custom printing available. Hot cup sleeves contain both recycled and post-consumer fiber content. Our newest addition, the Eco Clutch™, contains 100% post-consumer fiber content.