Zak Designs Kelso 15 oz Tumbler Set (Starpower) – Leak-Proof Lid, 2-Pack for Kids

Zak Designs Kelso 15 oz Tumbler Set — Starpower Edition

The two-piece Kelso tumbler bundle is designed for kids and busy families who want a reliable, reusable cup they can grab with one hand. Each tumbler holds 15 ounces and stands about 6.67 inches tall, with a slim 3.16-inch diameter that fits little palms and most lunchboxes. The cheerful finish and sturdy construction invite everyday use, from morning sips to after-school drinks.

What makes Kelso stand out

As part of Zak Designs' Starpower lineup, these cups pair practical features with kid-friendly aesthetics. The durable plastic body takes everyday knocks, while a soft silicone straw offers a comfortable sip. The lid is screw-on with a built-in valve in the straw to help manage liquid flow and reduce spills as kids move around.

• SPECIFICATIONS: 15-ounce capacity; 3.16" diameter; 6.67" tall.
• BUILD & MATERIALS: Durable plastic with silicone straw; dishwasher-safe, not microwave-safe.
• LEAK RESISTANCE: Built-in straw valve supports controlled sipping and helps minimize accidents.
• PORTABILITY: Compact form fits car cup holders and school bags alike.
• SUSTAINABILITY: Reusable design supports a discard-free beverage routine.

Two cups, endless everyday use

The two-pack setup makes mornings smoother and mealtimes less stressful. Use one tumbler for water and the other for juice, or keep a spare for travel days. The soft straw remains comfortable during extended sipping sessions, and the lid closes securely to contain spills.

• AT HOME OR ON THE GO: Great for breakfast routines, car rides, or classroom use without worry about leaks.
• EASY CLEANUP: Both tumblers are dishwasher-safe for quick, thorough cleaning after busy days.

Care tips and longevity

To preserve color and performance, avoid microwaving and follow dishwasher guidance. Regular cleaning helps maintain the straw valve and flexible seal, so sipping stays smooth. The Kelso design aims to blend everyday practicality with a touch of fun in the kitchen or lunchroom.

Choosing Zak Designs means adding a touch of playfulness to hydration while keeping things practical and easy to maintain. The Kelso 15 oz tumbler set offers a simple, reusable solution that fits into daily routines and can help reduce disposable cup usage over time.

Where to use

Perfect for school lunches, after-school activities, trips, and quiet mornings at home, these tumblers invite kids to drink more water or juice with less fuss. The two-pack gives you flexibility for different drinks, flavors, or family members.