This BPA-free flask is durable, safe to drink from, and doesn’t have any foul or “off” aftertaste.
NO METAL: Tough and shatter-resistant, the Boulder Flask can stand up to nearly any outdoor adventure; Thermoplastic resin body keeps your drink of choice intact
Transparent design for an enjoyable and unique drinking experience; Hinged lid with textured silicone edge facilitates opening, reduces spills and ensures cap stays attached.
Weighing only 4 ounces empty, the Boulder Flask won’t weigh you down even after you fill it.
Wide mouth opening makes for easy filling, pouring and drinking; Molded graduation marks help you quickly measure or see what’s left while you’re on the trail.
This BPA-free flask is durable, safe to drink from, and doesn’t have any foul or “off” aftertaste.
NO METAL: Tough and shatter-resistant, the Boulder Flask can stand up to nearly any outdoor adventure; Thermoplastic resin body keeps your drink of choice intact
Transparent design for an enjoyable and unique drinking experience; Hinged lid with textured silicone edge facilitates opening, reduces spills and ensures cap stays attached.
Weighing only 4 ounces empty, the Boulder Flask won’t weigh you down even after you fill it.
Wide mouth opening makes for easy filling, pouring and drinking; Molded graduation marks help you quickly measure or see what’s left while you’re on the trail.
