Key Features:

Material:

SUS 316 Stainless Steel (surgical-grade, ultra-resistant to rust, acids, and saltwater corrosion).

Safer for long-term use vs. 304 steel (especially for acidic drinks like coffee, citrus juices, or sports drinks).

Insulation:

Double-wall vacuum insulation (keeps liquids hot for 12–24 hours / cold for 24–48 hours).

Condensation-free exterior (no sweat rings).

Capacity:

1000ml (1L) – Ideal for all-day hydration, gym, or travel.

Wide-mouth design (fits ice cubes, easy to clean).

Lid & Portability:

Leak-proof screw lid or flip-top straw lid (varies by brand).

Carabiner loop (for attaching to bags).

Fits most cup holders (slim design despite large capacity).

Durability:

Shock-resistant base (prevents dents).

Powder-coated finish (scratch-resistant, matte texture).