IYKYK Stainless Steel Tumbler | Swinger & ENM Lifestyle Drinkware – DK Apparel

Stay refreshed while keeping things cheeky with the IYKYK Stainless Steel Tumbler. Designed for those in the swinger and ENM (ethical non-monogamy) lifestyle, this tumbler turns a daily essential into a playful nod for those “in the know.” Short for If You Know, You Know, the slogan connects instantly with lifestyle insiders while staying fun and discreet.

Crafted from durable stainless steel, this tumbler features double-wall insulation to keep drinks hot or cold for hours. Its sleek design fits easily in your hand and cup holders, while the spill-resistant lid makes it perfect for travel, the gym, or lifestyle events. Whether you’re sipping morning coffee or cocktails poolside, it’s built for both function and personality.

The IYKYK design makes this tumbler more than drinkware—it’s a subtle signal, a conversation starter, and a reminder to embrace confidence and humor wherever you go.

At DK Apparel, we believe even your accessories should reflect individuality and inclusivity. The IYKYK Stainless Steel Tumbler is more than a cup—it’s lifestyle pride, humor, and authentic self-expression wrapped in a functional, stylish design.

• High-grade stainless steel tumbler
• 20 oz (600 ml)
• Tumbler size: 3.11″ × 8.42″ (7.9 cm × 21.4 cm)
• Straw and lid included with the tumbler
• A cylindrical shape (top to bottom)

Disclaimer: Not dishwasher or microwave safe. Hand-wash only.

Size guide