Nike large flask 2 pack x 10ozthis pack of two flasks from nike enables you to keep a total of 20oz of hydration close by they are compatible with most nike waist packs and vests and have an ergonomic shape with no spill bit valves featuresbottle material 73 ldpe 17 pp 10 tpepack of 2capacity 10oz per bottleergonomically shaped bottleopening diameter 3cmno spill pop top bite valve pliable plastic bodyfits into a variety of nike waist packs and vestssize 95cm x 21 5cm x 6cm dxhxwbu