Easy opening / closingOpens and closes easily and quickly with 2 hands without unscrewing the lid.
DurabilityTritan: see through plastic that is practically unbreakable. No after taste.
Ease of useWide opening for easy filling, carry handle, graduations. 0.5 L.
IsothermalNot insulated. To keep your drink fresh, use the isothermal cover 0.6L.