Hydro Flask 21 Oz Lightweight Standard Mouth

Lightweight insulated flask built for the trail

Nobody likes lukewarm bottled water on a hot hike. We’d take ice-cold liquid refreshment every time. The problem is that packing a double-wall, insulated vacuum flask adds unjustifiable weight to your pack, even on a day hike. But Hydro Flask’s Lightweight Trail Series are 25% lighter than the standard bottles in the Hydro Flask range, thanks to an innovative thin wall stainless-steel design. This flask’s practical 21oz (600ml) capacity is the ideal size for big days spent hiking and hillwalking. Plus, the standard mouth design guarantees dribble-free drinking, so now it is easy to enjoy icy-cold, refreshing drinks as far as your spirit of adventure takes you