PRODUCT DETAILS Designed for the minimalist runner, the SkyFlask Speed features an adjustable hand strap and innovative, padded thumb loop to hold the flask securely in either hand without gripping or squeezing. Topped with our SpeedFill cap for quick refills on the go. Adjustable Hand Strap BPA And PVC Free Packs Down Speedfill Cap RUNNING CAPACITY 500 ml / 18 fl oz WEIGHT 64.5 g / 2.3 oz DIMENSIONS 215 mm x 77.9 in / 8.5 in x 3.1 in FILTRATION Compatible MATERIAL TPU, PP, HDPE, Silicone, Nylon, Neoprene