Tossed this in my running vest for a half marathon and barely noticed the weight. It collapses down small enough to shove in a pocket once it's empty, which is exactly what I wanted for race day.
Emma L.★★★★★
The bite valve actually lets me drink mid-stride without stopping to fiddle with a cap, which is exactly what I needed on race day. Once it's empty I barely notice it in my belt.
Carter F.★★★★★
Collapsed down flat in my running vest and barely noticed it was there for the first few miles. The bite valve is the real win — I could grab a sip mid-stride without breaking rhythm.