Special Edition yellow bottleA clean, fast, and convenient way to prepare and use SiS drinksThis bottle is specially made for SiS, with handy markings that are a key part of the easy-mix systemTo use, start by adding drink powder up to the appropriate level; part fill with water and shake to mix the drink; finally top up to the final level with more waterThe result is no fuss, no mess, with less chance of contaminating your drink