Klean Kanteen Classic Insulated 20 oz.
Sturdy, insulated stainless steel is durable enough for any activity and will keep your water cold for a long time (think: SoulCycle 90-minute challenge classes, 70-minute heated vinyasas, and more). Klean Kanteen is a super respected brand, thanks to durable construction you can count on.
Klean Kanteen Classic Insulated 20 oz. ($28, originally $31)