Add your cucumber (peeled and seeds removed) and half of your jalapeño to a high-powered blender.
Blend that up until smooth and then strain with a fine mesh sieve.
Next, combine Pantalones Organic Blanco Tequila, Cointreau, lime juice, agave syrup, and your cucumber-jalapeño juice into an ice-filled shaker.
Shake it and pour into your tajin rimmed glass.
Top off with a lime wedge.