It is made of silicone, which is very soft and . It is perfect for outdoor and travel using. It is this collapsible travel cup features that has a threaded seal design that s it from leaking easily, so that you can carry it with you safely. The length of the product when it is unfolded is 12.7cm, the width is 10.6cm; the length of the product when it is folded is 10.6cm, the width is 6.7cm. What this collapsible travel cup can offer you is that it allows you to stretch it as far as you want, so you don't have to waste more water than you can drink. Description: What this collapsible travel cup can offer you is that it allows you to stretch it as far as you want, so you don't have to waste more water than you can drink. It is this collapsible travel cup features that has a threaded seal design that s it from leaking easily, so that you can carry it with you safely. It is made of silicone, which is very soft and . The length of the product when it is unfolded is 12.7cm, the width is 10.6cm; the length of the product when it is folded is 10.6cm, the width is 6.7cm. It is perfect for outdoor and travel using. Item Name: Collapsible Travel Cup Material: Silicone Color: yellow, white Features: Leakproof, Large Capacity, Portable Capacity: 450ml Size Details: Unfolded Size: 12.7cm x 10.6cm/5" x 4.17" (Approx.) Folded Size: 10.6cm x 6.7cm/4.17" x 2.64" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Collapsible Travel Cup(Others Not Included)