Iron Flask 40oz Insulated Water Bottle (Twilight Blue)

The Iron Flask 40oz is a double-wall insulated stainless-steel water bottle designed for outdoor enthusiasts and everyday hydration. Built from 18/8 premium stainless steel (BPA-free), it keeps drinks cold for up to 24 hours and hot for up to 12 hours. The standout feature is the three included lids: a carabiner straw lid with two straws, a flip lid, and a stainless-steel lid (plastic interior, stainless exterior), offering flexibility for different drinking scenarios. The wide mouth makes refilling and cleaning straightforward. At 40 oz with a weight of 1.52 lbs, it's substantial but durable. Hand-wash only. Best suited for campers, hikers, gym-goers, and anyone seeking reliable insulation at a competitive price point. Note: larger sizes do not fit standard cup holders.