ULTRA-DURABLE MUGS SIZED FOR STRONG BREWS AND PERFECT POURS. The Rambler® 177 ml Stackable Mugs are just the right size for a flat white on the deck and a cortado at camp. Plus, its DuraSip™ Ceramic Lining, over-engineered firm-grip handle, and stackability make it ideal for espresso machines, camp kitchens, and beyond. Details DuraSip ™ Ceramic Lining: Savour every sip with a no-mess interior made for easy cleaning. Stackable: Made to stack when you're strapped for space. Barista-Friendly Design: Designed to fit under most espresso machines. 18/8 Stainless Steel: Made with kitchen-grade stainless steel so they're puncture- and rust-resistant. Dishwasher Safe: Because no one needs more work to do. Size: 177 ml / 6 oz