The PROPEL espresso glass set (set of two) features an elegant, yet functional design that provides you with a more consistent and aromatic experience in every sip. It’s time to take Espresso glassware to new heights. CONSISTENT FLAVOR IN EVERY SIP Each 2.5oz (75ml) PROPEL espresso glass is uniquely hand-blown and purposefully designed to give you the best tasting single or double shot. The double-walled construction ensures the glass is cool to the touch, while keeping coffee temperature just right. It also features a robust amount of headspace to help capture and circulate the rich aroma. Due to espresso’s oily nature, it can easily stratify and separate into different tasting layers.