COSTA Jumbo Large Capacity Stainless Steel Insulated Straw Water Bottle for Men and Women Office Student DIY Holiday Gift

6-layer insulation technology including triple vacuum insulation layers and copper plating for long-lasting temperature retention

O3D three-dimensional logo sticker for aesthetic appeal

DIY creative design elements for personalization

Keeps beverages hot or cold for up to 6 hours

Tested with 95°C ±1°C hot water and 4°C ±1°C cold water in 20°C ±5°C ambient environment

Suitable for coffee, cola, milk, juice, milk tea, flower tea, and other beverages

Not sealed; not recommended to carry in bags to avoid leakage

Cups with straws are not suitable for hot drinks above 40°C to prevent burns

Avoid dishwasher, microwave, and direct heat sources to prevent damage

New cups may have slight odor; can be removed by soaking with lemon slices for 1-2 hours

Regular cleaning recommended using neutral detergent and warm water; avoid abrasive cleaners

Not recommended for unsupervised use by infants and toddlers

When filling hot or carbonated drinks, open lid slowly to avoid splashing

Store in a dry, ventilated place away from direct sunlight and out of reach of children

Workplace

Studying

Driving

Camping

Avoid placing in dishwasher or sterilizer with high temperature to prevent vacuum explosion

Avoid direct heating to protect vacuum insulation and coating

Handle with care to prevent accidental opening and spills

Large capacity cup lock maintains coldness and ice sensation for extended periods

Silicone design provides wear resistance and anti-slip grip

Easy disassembly for deep cleaning and maintenance