The Hydro Flask 32 oz Lightweight Wide Mouth Trail Series is a sturdy water bottle for staying hydrated on the trail. Stainless steel construction you trust with a lighter weight, 25% less than Hydro Flask's other 32oz bottles. It still features TEMPSHIELD insulation to keep your drink cold for up to 24 hours or hot for up to 12. Hike, drink up, keep moving along. Less weight to haul and it gets even lighter for the last few miles as you guzzle that water.