The 20 oz Lil BOSS and the 30 oz Big BOSS are nearly Indestructible!
Made of Double Wall Vacuum Insulated Stainless Steel – Passivated against chemical reactivity and metallic taste. Both the Big BOSS and Lil BOSS come with a unique Acrylic Push In Top With Sliding Tab. This top helps maintain your beverage temperature longer and most importantly does not spill!
*ALL products come with FREE ENGRAVING and FREE SHIPPING*