Premium 30oz Stainless Steel Insulated Tumbler by GZYSL
Constructed with high-grade 18/8 stainless steel for superior durability and rust resistance. Double-wall vacuum insulation maintains hot drinks for 12 hours and cold beverages for 24 hours. Sleek copper-plated interior enhances temperature retention and prevents flavor transfer. Ergonomic design features a spill-proof lid with a smooth sliding mechanism for easy one-handed use. Matte exterior finish resists fingerprints and scratches, while the tapered base fits most cup holders. Ideal for outdoor adventures, office use, or promotional corporate gifts. Bulk purchase available at wholesale pricing, exclusively for global resellers. Custom branding options upon request.