The BOULDER vacuum-insulated water bottle, EcoVessel's flagship, features TriMax® Triple Insulation to keep drinks cold for up to 60 hours and hot for 12.

Its Reflecta™ lid is lined with stainless steel, ensuring no contact with plastic and excellent temperature retention. The dual-opening lid offers easy filling, a soft silicone spout for comfortable sipping, and a secure carrying strap with a leakproof seal.

This stainless steel bottle includes a removable strainer for tea, fruit, or ice, plus a durable silicone bumper for added protection. Stay hydrated in style with the BOULDER!