
Bianli Sports Portable Double-Wall Vacuum Flask Insulated Stainless Steel Water Bottle. Eco-Friendly Materials: Made from coffee grounds, crop stalks, wheat bran, rice fiber, and BPA-free Tritan. Customizable Colors: Available in Green, Pink, Black, Purple, White, Brown, Yellow, or fully customized. Customizable Logo: Supports screen printing, laser engraving, UV printing, and heat transfer. Double Wall Vacuum: Provides superior insulation with 6-12 hours heat retention. Food Grade Safety: Non-toxic, tasteless, and certified BPA free with SGS heavy metal testing. Durable Construction: High strength, unbreakable, and features a unique rustic texture. Multiple Certifications: Certified by EU, GA65, ISO9001, SMETA, and EPR standards. Flexible Customization: Offers minor, sample-based, design-based, and full customization options.