The Sea To Summit Delta Insul-Mug features a groundbreaking advancement in thermal insulation. It sports an integrated molded polyurethane sleeve that insulates the liquid inside the mug, unlike double-walled mugs that only protect your hands. The concave designed lid allows excess liquid to flow back into the sipping hole, not all over you!
- Sipping lid with leakproof seal and hang loop, Cool-to-the-touch rim
- Food grade Nylon 66, BPA-free
- ThermoSkin non-absorbing insulation sleeve
- Odor and stain resistant
- Protex hex pattern base disperses heat