Perfect Fit Promise: The silicone protector boot sleeve is specifically designed to be compatible with the Sinple Midern 40 oz Trek Collection Tumbler (Precisely made according to the perfect size of the Sinple 40 trek collection, Not Fit Other Brand Water Bottles!!）

Enhanced Protection: Compatible with Sinple Midern boot designed with multiple features in mind: anti-slip, anti-noise, anti-scratch, waterproof, and anti-collision; It shields your Sinple Midern 40 oz Trek Tumbler Bottle from accidental damage, extending its lifespan

Carefully Chosen Materials: The bottom sleeve cover is top-tier food-grade for safety and reliability; It's soft for easy handling but tough enough to withstand damage; Plus, it's without BPA and odorless, ensuring your confidence in every use

Straightforward Installation: Before installing the silicone boots, ensure the bottle's bottom is clean; Insert the bottle into the boot until all air is squeezed out from the air vent; Unlike other silicone cover, it won't stick when removed, offering easier operation

Variety of Matching Colors: Choose from 11 color cup sleeves matching the Sinple Tumbler Trek; No worries about color inconsistency; pick your favorite effortlessly; Send email to us anytime if you have questions; we're here to help