Signature Stainless Steel Tumbler

1. Premium 304 Stainless Steel
Durable, rust-proof, and built for daily use. No metallic taste, no odor retention.

2. Double-Wall Vacuum Insulation
Keeps your coffee hot for up to 6 hours and your iced Americano cold for up to 12 hours. Perfect for long study sessions.

3. Clean & Minimalist Design
The brushed silver finish with our signature Black, Blue, and Red logo looks professional in the classroom, office, or cafe. Your logo is printed with high-durability, scratch-resistant printing.

4. Safe and Eco-Friendly
BPA-free, spill-resistant slider lid. Reusable and sustainable — reduce single-use cups while showing your Seodang pride.

5. Perfect Grip and Size
Ergonomic, sweat-free exterior. Fits in most car cup holders and backpack side pockets. Ideal for students and teachers on the go. (Standard 500ml / 17oz)

6. Perfect for Branding & Gifting
An ideal merchandise item for students, a welcome gift for new learners, or a souvenir that represents your journey with Korean language and culture.