The triple-wall insulation actually holds up, my iced coffee still had cubes floating around after a four-hour drive. The flip straw snaps shut tight enough that it hasn't leaked a drop in my bag, and it fits my car's cupholder without wobbling.
Benjamin A.★★★★★
Filled it with ice water at 7am and there was still ice rattling around at 4pm, which honestly shocked me for a tumbler this size. The flip straw is stiff enough that it doesn't flop around in my bag, and nothing has leaked yet.
Hazel★★★★★
The flip straw is what sold me — no more unscrewing a lid one-handed in traffic. Fits my cupholder perfectly and the cream color doesn't show coffee stains.