Bundle of 2 Hydroflask wide mouth chug cap lids One is EUC. The other VGUC for scratch Refresh on the go with this leakproof chug style cap. The narrow chug spout provides a convenient, controlled flow to quickly quench your thirst. The wide mouth cap easily fits ice cubes to keep things cool. Fits all Wide Mouth bottles. Narrow Chug drinking spout for a convenient, controlled flow Wide mouth bottle threading fits all Wide Mouth bottles Leakproof when closed Flex Strap is easy to transport and comfortable to carry BPA-Free Dishwasher safe