Based on modern urban sensibility Concept One is a business casual brand that reinterprets customers' lifestyles in a modern sense. Shop Concept One's products conveniently anytime, anywhere. 1. Personalized product recommendation Don't worry about what to buy. We recommend the best products with various promotions every week. 2. One-day delivery Experience the product faster. We provide a one-day delivery service that arrives today in Seoul and departs today in non-Seoul areas. 3. Membership