Zak Designs Kelso 15 oz Tumbler Set — Space Leak-Proof Lid & Straw (2pc)

Two kid-friendly tumblers, built for everyday adventures

The Zak Designs Kelso 15 oz Tumbler Set brings a space-inspired pop of color to hydration time. Designed with busy kids in mind, these cups combine a sturdy plastic body with a soft silicone straw, offering a practical, reusable alternative to disposable cups. Each tumbler stands about 6.67 inches tall and holds a generous 15 ounces, making them a reliable companion for school lunches, after-school sports, and family outings.

Key features at a glance

• Size and capacity: two tumblers, approximately 3.16 inches in diameter and 6.67 inches tall, each with 15-ounce capacity
• Material and care: durable plastic with silicone straw; dishwasher safe; not microwave-safe
• Leak-proof design: silicone straw includes a built-in valve that helps fluids flow when drinking while reducing spills if tipped
• Versatile for home and travel: compatible with car cup holders and easy to reach during activities
• Eco-conscious and reusable: a colorful, reusable solution that cuts down on disposable cups

Why families love Kelso

These cups pair everyday practicality with a playful look. The bright colors and comfortable straw invite kids to drink more often, while the screw-on lid and leak-prevention design give caregivers peace of mind during busy mornings and car rides. Although designed for kids, the set remains simple enough for adults to handle as well.

Real-life use cases

• Morning school runs: grab-and-go beverages that stay put in car cup holders
• Snack time at home: spill-resistant design helps when little ones are learning to drink
• After-school activities: quick to rinse and ready for the next adventure

Care, reuse, and sustainability

The tumblers are dishwasher safe for easy cleanup. They should not be microwaved, which helps preserve the color and integrity of the plastic and silicone components over time. The Kelso set offers a practical, reusable option that supports a reduction in disposable cups without sacrificing fun.

Gift-worthy and family-friendly

With a vibrant, kid-appropriate design, this 2-pack makes a thoughtful gift for kids transitioning from sippy cups or starting a new school year. They are fully reusable, blending everyday use with a dash of playfulness that families can enjoy together.