Crafted with a sleek and minimalist design, the Simple Modern Classic Cocktail Shaker can switch from barware tool to on-the-go tumbler. The double-wall vacuum insulated stainless steel will keep cocktails fresh and ice cold for hours. Each shaker includes a built-in strainer to keep ice and solid cocktail ingredients inside. The cap doubles as a jigger measuring cup with 0.5 and 1 oz markings. Easily pour your cocktail into your preferred glass to share or switch out the top with the Simple Modern Classic tumbler lid to sip and enjoy.