About this item EVOLUTION: InstaShield Gaucho MarketTechnology keeps the mate warm 3 times longer than any regular mate cup. Its double-wall insulated 304 18/8 stainless steel materials will give you hours of hot mate. MODERN: Trendy, minimalist, contemporary, ergonomic 8 oz cup of pure joy. Easy to hold, beautiful shape, Includes an innovative flat bombilla with MyGaucho engraved logo and a brush for an easy cleaning EASY CLEANING: Different from other kinds of mate gourds, our cup is easy to wash and clean. We recommend hand-wash to avoid the remaining yerba going into your dishwasher. The bombilla (straw) can be hand or machine-washed. QUALITY GUARANTEED - Every product sold by Gaucho Market is 100% guaranteed. Will solve any issues tha may appear with the product. Make sure to follow the easy cured instructions before use