What's the difference?
Summer Collection Product Features

Classic™
Sale priceFrom $9.99

Pro Series
Sale priceFrom $12.99

Strada™ Insulated Stainless Steel Twist
Sale price$29.99
Leakproof
Yes
Yes
Yes
Odor-resistant
—
Yes
Yes
Insulated
—
—
Yes
Limited Lifetime Guarantee
Yes
Yes
Yes