The base is overwhelmingly lightweight, soft and easy to grip FLY bottles. The new suction cup has been adopted for improved flow rate compared to previous products. Wide mouth body for easy pouring and cleaning When you receive your FLY bottle, there may be some dents on the side, but please leave it for a certain time or add warm water from about 104°F to 122°F (40°C to 50°C). Since this model is made to be extremely light and easy to grip (softness) based on feedback from top professionals, there may be cases of dents or other items that are likely to occur even during regular shipping mail. Caution: This product was developed to be optimized for cycling sports applications, and the structural liquid seal is not completely sealed in order to achieve a light and easy grip (softness). Please note that the liquid may leak if you use the bottle upside down or put it in your bag. This product is dishwasher safe, but it can withstand temperatures up to 104°F (40°C). Also, please be careful not to touch heat sources such as heaters during washing. Capacity: 18.3 fl oz (550 ml); Weight: Approx. 1.9 oz (54 g); Maximum temperature of filled drinks up to 104°F (40°C); *BPA free.