Nathan 20oz Soft Flask with Bite Top Size:OS secondary J-zip pocket adds quick-grab

secondary J-zip pocket adds quick-grab access on the go

the Vigor Heavyweight is our top pick for women who need serious warmth without losing hand function

non-restrictive coverage all day

while TNF Winter Grip rubber handles slick

Nathan 20oz Soft Flask with Bite Top Size:OS secondary J-zip pocket adds quick-grabFor trail runners and endurance athletes who need reliable on the move hydration, the 20oz Soft Flask fits snugly in vest pockets and waist belts without bouncing. The pliable TPU body compresses as you drink, eliminating slosh and dead weight, while the high flow bite valve keeps fluid moving fast without fumbling. Holds 20oz (600ml) and fits standard front vest pockets and hydration belt sleeves no awkward adjustments mid run Durable TPU