Era Tumblers are 100% leakproof with cold beverages and carbonated beverages with ice when in the locked position

performance and comfort

There is an instruction manual that comes with it and explains how it works

Note: Leap must be in the locked position to prevent spills

30" Inseam

Brumate Leap 12 oz. Straw Tumbler color-mocha Era Tumblers are 100% leakproofA 100% leakproof straw tumbler designed for kids. With leakproof technology to prevent spills, a protective silicone sleeve to prevent dents + dings, triple insulation for all day cold drinks, and a cold key straw that keeps plastic from sitting in water, the Leap is built to handle everyday adventures. Perfect for school, playdates, and activities on the go, it comes in a variety of fun colors to match your child's unique style. Note: Leap must be in