Klean Kanteen 18 oz Classic Water Bottle with Flip Seal Sport Cap & Straw, Sea Spray, 100% Leakproof Stainless Steel

The Klean Kanteen 18 oz Classic Water Bottle with Flip Seal Sport Cap & Straw is a compact, leakproof stainless-steel bottle designed for easy sipping on the move without tilting.

This lightweight 18-ounce bottle pairs a secure, 100% leakproof Flip Seal Sport Cap with a removable straw so you can sip, hydrate, and go. Constructed from 18/8 food-grade stainless steel with a matte Klean Coat finish and made using high post-consumer recycled content, it resists odors and stains while keeping beverages tasting clean. The slim profile fits most cup holders, the cap components are dishwasher-safe, and the wide opening makes quick cleaning straightforward.

How does the Flip Seal Sport Cap stop leaks and still let me sip easily?

The Flip Seal Sport Cap uses a hinged spout that seals completely when closed to prevent spills. When flipped open, the removable stainless-steel straw lets you drink without tipping the bottle, which is convenient for driving or workouts.

• 100% leakproof spout when closed
• Removable straw for hands-free sipping
• Hinged flip opens with one hand
• Dishwasher-safe cap components

Will this bottle keep drinks tasting fresh and free from odors?

Yes — the interior is 18/8 stainless steel that won’t hold flavors or smells like plastic can. The smooth, non-porous surface makes switching between water, juice, or diluted sports drinks simple without lingering aftertastes.

• 18/8 food-grade stainless steel interior
• Resists staining and odor retention
• Easy-to-rinse wide opening for thorough cleaning
• Matte Klean Coat exterior prevents chips and improves grip

Is this bottle comfortable to carry and compatible with cup holders?

The 18 oz Classic has a slim, ergonomic shape that slides into most vehicle and stroller cup holders. A molded carry handle on the Flip Seal Sport Cap gives a secure grab-and-go option without adding bulk.

• Slim 18-ounce profile fits most cup holders and backpack pockets
• Lightweight for all-day carry
• Integrated carry handle on the cap for easy transport
• Compact size balances capacity and portability

How easy is it to clean and maintain the bottle and cap?

The wide mouth and stainless-steel interior simplify hand washing with a bottle brush; cap and straw parts are dishwasher-safe for convenience. Because stainless steel resists stains and odors, routine rinsing keeps the bottle fresh between deeper cleans.

• Wide opening allows bottle-brush access
• Flip Seal Sport Cap and straw are dishwasher-safe
• Stainless interior resists residue buildup
• Removable straw enables complete drying and sanitizing

Who is this for: The Klean Kanteen 18 oz Classic with Flip Seal Sport Cap & Straw is aimed at commuters, gym-goers, parents on the move, and outdoor enthusiasts who want a compact, durable, and sustainably made bottle. It suits anyone who prefers one-handed sipping, needs a reliable leakproof spout for a bag or cup holder, and values materials that don’t impart taste. As a Climate Neutral Certified brand made with high recycled stainless content, it’s also a practical choice for shoppers prioritizing low-waste gear and long-lasting performance.

• Leakproof Flip Sport Lid: Klean Kanteen 18 oz Classic Water Bottle features a 100% leakproof lid with easy-open spout; includes removable stainless steel straw for versatile, easy sipping
• Durable Recycled Stainless Steel: Made from certified 90% post-consumer recycled 18/8 stainless steel with chip-resistant Klean Coat finish built for gym use and daily hydration
• BPA-Free & Safe Materials: Crafted from BPA-free, non-toxic materials for a clean taste; ideal for commuting, workouts, travel, and everyday hydration
• Cupholder Friendly Design: Slim, lightweight 18 oz profile fits most cup holders and bags; ergonomic shape with carry handle for grab-and-go convenience
• Klean Kanteen Commitment: Built by a brand prioritizing people and the planet, Climate Neutral Certified and designed for sustainability and high performance