Standard Mouth Flex Straw Cap

Name: Standard Mouth Flex Straw Cap
Brand: Hydro Flask
SKU: 152528
Price: 7.5 USD
Availability: InStock
Rating: 5.0 (3 reviews)

Bottle AccessoriesStock: 991

$7.5~~$15~~

Product Details

This Hydro Flask Standard Mouth Flex Straw Cap is a reliable, leakproof replacement or spare lid designed to fit Standard Mouth bottles. It lets you sip comfortably through a flexible straw while keeping your drink securely contained.

Leakproof design helps prevent spills during everyday use.
Compatible with Hydro Flask Standard Mouth bottles.
Flexible straw offers convenient, easy sipping.
Available in Black for a sleek, understated look.

Customer Reviews (5.0 / 5 · 3 reviews)

Leo ★★★★★ Nov 5, 2026

Swapped this onto my bottle for my morning commute and the flexible straw is way easier to sip from while walking than the old flip lid. It's leakproof too, no drips rolling around in my bag.

John Q. ★★★★★ Nov 4, 2026

The straw cap hasn't leaked once in my bag, and the flexible straw is way easier to sip from while driving than tilting the bottle. Swapped it onto my standard mouth bottle in seconds.

Richard ★★★★★ Nov 3, 2026

Bought this as a spare so I'm not stuck washing a lid every night, and the leakproof seal has held up fine tossed in my bag. The flexible straw is soft enough to sip from without tipping the bottle way up.