In a shaker, add ice and both vodkas. Shake vigorously and set aside.

Muddle the sliced strawberries in the bottom of a glass. Fill the glass with ice and top with the vodka mixture. Stir gently to incorporate the muddled strawberries throughout and top with soda water (it's up to you on how much soda water to add.

This is a pretty strong drink so you may want to take the edge off with more soda or if you like it strong, skip the soda all together). Garnish with a strawberry.