PORTABILITY: We designed a detachable carrying strap for this kids water bottle to help kids carry it easily on family outings, school, bike rides and other outdoor activities to hydrate in time. The classic coke shaped water bottle is compact, lightweight and sized to fit backpack and lunchboxes. 18/8 STAINLESS STEEL: All of VINUR's water bottle are carefully crafted from high quality stainless steel and are BPA and phthalate free. The interiors are electrolytically polished and odorless.The exterior is finished with a smooth, long-lasting powder coat in bold, vibrant colours that offer greater resistance to peeling and fading than lacquer. KEEP COLD: Double wall vacuum insulation keep cold for 24 hours and hot for 12 hours. The small mouth has a better temperature locking function than the wide mouth, reducing heat loss to keep warm for longer. The insulated water bottle is completely leak-proof, even when the water bottle is turned upside down or shaken. DURABLE: No need to replace the kids' water bottle frequently! The insulated water bottle is made of durable stainless steel that resists life's inevitable bumps and drops and lasts for years. The bottom of the bottle retains the original stainless steel, which is more resistant to scratches and dents than coated surfaces. TOP QUALITY AND SERVICE: we care about your child's drinking water health as much as you do! Strongly boycott recycled materials, your child deserves better! If there are any questions about the ordered water bottles, please contact us via email for immediate satisfaction.