Step 1.
- Rim the highball glass with lime juice and dip it into salt to coat the rim.
Step 2.
- In a shaker, combine tequila, fresh lime juice, simple syrup, and ice.
Step 3.
- Shake well until chilled, about 15 seconds.
Step 4.
- Strain the mixture into the prepared highball glass filled with fresh ice.
Step 5.
- Top with soda water and gently stir to combine.
Step 6.
- Garnish with a lime wedge.