These are vacuum insulated stainless steel travel mugs with silicone grips.
Insulation: Double-wall vacuum insulation keeps drinks hot or cold for hours.
Material: Made from food-grade stainless steel with a BPA-free plastic lid and silicone sleeve/grip.
Features: Designed to be sweat-proof, leak-proof, and easy to clean with a large opening.
Capacity: Typically 500ml (approximately 16-17 oz).
Use: Suitable for travel, office, or outdoor use, designed for one-handed grip and portability.