The Sea to Summit X-Brew Coffee Dripper is a collapsible coffee dripper with a reusable mesh filter. Its compact size and 2 cup capacity make it the perfect solution for a quick brew before a day on the trails or at the crag. The X-Brew nests perfectly inside of the Sea to Summit X-Kettle forming a complete coffee outside kit. Features: 2 cup capacity Made from durable Nylon 66 and food-grade silicone No need for paper filters with the reusable stainless steel double mesh filter Filter mesh is super-fine with 180 micron holes for thorough straining of coffee grounds If use of a paper filter is preferred, the mesh can be easily removed and a paper filter used instead Spiral pattern on internal base is designed to break the surface tension of paper filters and create a more consistent drip speed Wide 4.3" base fits on almost all mugs and cups F