It's double-layered with a black patterned knit. Because it's double-layered, you can store your smartphone, cards, lipstick, etc. Height: Approximately 18cm Width: Approximately 12cm Depth: Approximately 2.5cm Strap Length: Approximately 105cm - Color: Black - Design: Patterned knit only on the outside - Material: 100% Cotton - Strap: Adjustable strap By gently pulling the string at the arrow in the third photo while holding the knot, you can lengthen or shorten it. Please be careful of snags as it is a patterned knit. It is carefully finished. We hope you understand that this is handmade before purchasing.