How to Install the Quencher Boot and Straw Cover Set

By Stanley 1913 Drinkware & Gear | Bottles, Tumblers, Growlers ... | Published: 2026-11-03

Category: How-to Guides

Learn how to install the Stanley Quencher Boot and Straw Cover Set on your 40 oz tumbler, with steps to protect the base and keep the straw cover secure.

Quick answer

Fit the silicone boot over the bottom of your 40 oz Quencher first, pressing it evenly around the base, then slide the straw cover onto the straw until it sits snug. Both pieces are silicone, so they grip by friction and need no tools.

Why the order matters

If you put the straw cover on first, you will likely handle the tumbler by the straw while wrestling the boot into place, which can bend or loosen the cover. Installing the boot first gives you a stable, protected base to press against a counter while you fit the straw cover.

When the fit feels tight

Silicone grips more as it warms, so a boot that seems stubborn on the first try usually settles after a few minutes of wear. Avoid stretching it aggressively or using sharp tools to pry it on. If the boot still will not seat evenly, check that you have the 40 oz size and that the tumbler base is clean and dry.

Installation steps

Clean and dry the tumbler base: Wipe the bottom of the Quencher with a damp cloth and let it dry completely. Silicone grips best on a clean, dry surface. Skip this and trapped grit can cause the boot to sit unevenly.
Align the boot and press one edge on: Hold the boot at a slight angle and hook one side of the rim over the tumbler base. Work around the circumference with your thumbs rather than forcing the whole boot at once. A common mistake is pushing straight down in the center, which traps air and makes the boot harder to seat.
Seat the boot evenly: Once the rim is on, press around the base until the boot sits flush and level. Check that no edge is rolled under. Rock the tumbler gently on a flat surface; if it wobbles, the boot is not fully seated.
Slide the straw cover onto the straw: Push the silicone cover over the top of the straw until it sits snug against the rim. It should cover the opening without stretching past the straw's end. Do not force the cover down the entire straw; it is meant to sit at the top.
Test the fit before use: Fill the tumbler and tip it slightly over a sink to confirm the boot stays in place and the straw cover does not slip. Adjust if needed. If the cover slides, dry the straw first; moisture can reduce friction.

Product facts

Stanley Quencher Boot and Straw Cover Set | 40 OZ: The set includes a silicone boot and straw covers designed for 40 oz Quenchers, with colors that match popular Quencher shades. You get a coordinated look and a base that is protected from the moment you install it.
Stanley Quencher Boot and Straw Cover Set | 40 OZ