Meet the Dual Layer Tumbler: your drink’s new bestie! Whether you’re sipping on cold brew, milk tea, or fresh juice, this cup brings extra fun, insulation, and comfort to every routine.

Features:

• The double-layer glass is a universal 2-in-1 thermos: inside is a glass cup, outside is a durable stainless steel thermos

• Dual Layer, Triple Function:
  Use the inner glass cup solo, the outer thermos cup solo, or combine both for maximum insulation and capacity.
  (Single-layer version skips the glass cup for a lighter, grab-and-go feel.)

• It keeps heat or cold for a long time (up to 6 hours) and is ideal for coffee, tea, juices and smoothies. 

• Custom Sip:
  Comes with a wide straw (1cm diameter) and interchangeable flat straw, perfect for smoothies, pearl tea, and fruit infusions.
  (Single-layer version does not include flat straw.)
  

• The glass is easy to clean, and its cute rounded design will cheer you up every day
  
• An ideal choice for the office, walks and trips, its 75mm diameter ensures compatibility with most cup holders
• Keep beverages hot for 6+ hours at 38°C or ice intact for 24 hours.

Specifications:

• Brand: ‎CHAKO LAB
  
• Product Dimensions: Double Layer – 10.6W x 11.2L x 21.5H cm | Single Layer – 10.6W x 11.2L x 19.5H cm
• Capacity: ‎Inner Cup 570ml, Outer Cup 600ml
• Material: ‎ Outer: 316 Stainless Steel, Inner: High Borosilicate Glass, Lid: BPA-Free Plastic + Food-Grade Silicone, Straw/Pad: Silicone