Classic Flip Seal Sport Cap

Name: Classic Flip Seal Sport Cap
Brand: Klean Kanteen
SKU: 1011230
Price: 9.12 USD
Availability: InStock
Rating: 4.8 (5 reviews)

Classic Flip Seal Sport Cap - Main image

$9.12 ~~$14.95~~ In stock

Category: Cap

The 100% leakproof Flip Seal Sport Cap comes with an ergonomic spout that opens and closes with just a flick of the thumb and can be used with or without the included stainless steel straw for maximum versatility so you can stay hydrated your way. Includes special telescoping straw to fit various size bottles. NOTE: Compatible with Classic narrow mouth bottles only (with internal threads). Recommended for kids ages 3+.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

James ★★★★★ Sep 10, 2026

No leaks in my bag after two weeks of daily use, which was my main worry. I usually skip the straw and just drink straight from the spout, and it's never dripped on me once.

Thomas ★★★★★ Sep 9, 2026

The thumb flick to open and close is so smooth I find myself doing it one-handed while driving, and it hasn't leaked a drop in my gym bag for three weeks. The stainless steel straw is a nice bonus, though I mostly use the spout directly.

Emily ★★★★★ Sep 8, 2026

I was skeptical about another "leakproof" lid, but after tossing this in my gym bag with water sloshing around for a week, not a single drop escaped. The stainless steel straw is a nice touch since I can sip without tilting my head back mid-run.