You can put your smartphone and water bottle in this strap while running, jogging, or walking. The Velcro part originally came with a smartphone holder, but it didn't fit the iPhone 6 Plus at the time, so I used a different one. I have lost the original holder. The other holder I bought later is listed separately. This is a HOLDTUBE product with an adjustable dot-pattern strap and a convenient zippered pocket. - Brand: HOLDTUBE - Design: Dot pattern - Function: Adjustable strap - Pocket: Zippered pocket Thank you for viewing.