Coolflask 87oz Insulated Stainless Steel Water Bottle with 3 Lids (Piano Night)

The Coolflask 87oz (2/3 gallon) is a double-wall vacuum-insulated stainless steel water bottle with three interchangeable lids (straw, flip, wide mouth) for versatility. It promises 48-hour cold retention and 24-hour hot retention, ships in a sleek Piano Night finish, and carries BPA-free certification.

Build & Insulation: Standard stainless steel construction with decent vacuum insulation—competitive with mid-tier brands like Takeya and Iron Flask, though not quite matching Hydro Flask or Yeti's thermal claims.

Lids & Spout: The three-lid system (straw, flip, chug) is a strong point, offering flexibility for sipping, chugging, and gym use. Straw design appears user-friendly, though tight-fitting lids can trap grime on the threads.

Leak-Proof: Multiple reviewers confirm reliable sealing in a bag when closed properly, though occasional seeping at the threads reported under heavy agitation.

Who It's For: Office workers, gym-goers, and all-day hydration seekers wanting an affordable insulated alternative to Hydro Flask or Yeti. The three-lid bundle justifies mid-range pricing for those who value versatility.

Caveats: Generic brand (limited warranty track record), heavier when full, and not a category standard—community buzz is modest compared to Owala or Hydro Flask.