Come and see our amazing products. The bottle cap has a buckle to hang it on a backpack or clothes, and is reliable enough to last a long time serveLeak Proof Design: our blank water bottle is sealed design, not easy to leak water, the bottom of the water bottle has a nonslip design, which can be placed firmly, and the buckle design is safe, helping the backpack or clothes not getting wetWide Applications: these reusable water bottles in bulk are easy to carry and reusable; You can take them to the gym, hiking, school, camping, fishing, beach or anywhere you want, or as gifts. Pls confirm with us about the packing info, stock color and exact production time before placing your order.