IRON FLASK Insulated Mug with Straw & Flip Cap – 40 Oz
Insulated mug with straw, flip cap, and leak-proof design. Keeps drinks hot up to 5 hours and cold up to 20 hours; fits standard cup holders for travel. Customer notes indicate reliable performance across temperatures
Highlights
- double-walled vacuum insulation
- fits cup holders
- leak-proof cap with straw
Pros
- Vacuum-insulated for hot & cold retention
- Fits standard cup holders
- Leak-proof flip cap and straw
- Non-slip rubber bottom for stability
Cons
- Limited stated duration for hot retention
- Single bottle size emphasized
Best For
Features
- Vacuum-insulated mug keeps drinks cold up to 20 hours and hot up to 5 hours
- Fits standard cup holders with a compact design and non-slip rubber base
- Constructed from 18/8 stainless steel, BPA-free and durable
- Includes airtight, leak-proof lids for versatile use