Checked against YETI's own Straw Lid and Bottle Straw Cap pages and every listing opened by hand on 2026-08-03.

For the YETI Rambler drinkware

YETI Rambler Straw Lid Replacement, by Vessel

The straw side of the Rambler line has the same split as the plain lids, and one piece of good news: two of the in-stock options are YETI's own listings, sitting next to a deep third-party shelf, so you are not stuck with either a monopoly or an empty aisle.

The split is the thread. A bottle takes the Bottle Straw Cap, and because every Rambler bottle shares a thread, that one cap fits all of them from the 18 oz to the 64 oz. You do not need to know your ounce, only that it is a bottle.

A tumbler or cup takes a tumbler Straw Lid, sized like the MagSlider, and YETI is explicit about where it stops: it fits the 16 oz Stackable Cup up to the 25 oz Straw Mug, it is "not compatible with the Rambler 20 or 30 oz Travel Mug with Stronghold Lid", and it is not for hot drinks. Owners fall into the gap between these two: one thread is titled "bought the 18 oz rambler (straw cap) for a trip, thought I could convert to a mag slider," which is the tumbler-and-bottle mixup in one sentence.

So the rule is the same as everywhere in this cluster: read the vessel, not the number.

Updated Aug 3, 2026 · Researched from manufacturer specifications and owner reports; every claim on this page links to its source.
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Our pick01 / 06

YETI Rambler Bottle Straw Cap (fits all bottle sizes)

YETI's own Bottle Straw Cap, which fits every Rambler bottle on the shared thread and ships with two straws. If you have a bottle and want a straw, this is the whole answer and you cannot buy the wrong size.

Fitment check

Sourced

YETI Rambler drinkware · the lid seat, where a bottle and a tumbler part company

  • Fits. Any Rambler bottle: the Bottle Straw CapYETI says one Straw Cap fits all Rambler Bottles, 18 to 64 oz, on the shared bottle thread
  • Fits. A 20 oz Tumbler or a small cup: the tumbler Straw LidYETI lists it for the 16 oz Stackable Cup up to the 25 oz Straw Mug, the same vessels as the Medium MagSlider
  • Does not fit. The tumbler Straw Lid on a Stronghold Travel MugYETI: "not compatible with the Rambler 20 or 30 oz Travel Mug with Stronghold Lid"
  • Conditional fit. A hot drink in a tumbler Straw LidYETI: "Do not use the Rambler Tumbler Straw Lid with hot beverages"
  • Conditional fit. Buying a straw lid when you only lost the strawa MagSlider takes a straw straight through it, so you may need an 11 in silicone straw, not a new lid
  • Note. A bottle straw cap and a tumbler straw lidare different parts on different threads; the ounce does not bridge them

Checked Aug 3, 2026 · source 1 source 2 source 3 source 4

All 6 straw lids and straw caps, compared

Ranked by fit confidence

Vessels YETI names
All YETI Rambler Bottle models: 18, 26, 36, 46 and 64 oz
Fits.Bolt-on
Vessels YETI names
The 20 oz Rambler Tumbler and the Medium-size cups and mugs on YETI's Straw Lid fit list; a tumbler lid, not a bottle cap
Fits.Bolt-on
Vessels YETI names
YETI Rambler 16 oz and 20 oz Stackable Cup, 20 oz Tumbler, 24 oz Mug, 25 oz Straw Mug; NOT the 20 oz or 30 oz Stronghold Travel Mug
Fits.Bolt-on
Vessels YETI names
YETI Rambler bottle 18, 26, 36 and 64 oz; NOT Ozark Trail, tumblers or growlers
Fits.Bolt-on
Vessels YETI names
YETI Rambler tumblers 26, 30, 35 and 42 oz; also Reduce 40 and 50 oz and Hydro Flask Traveler 32 and 40 oz
Fits.Bolt-on
Vessels YETI names
Fits.Bolt-on

The reviews

Our pick01

YETI Rambler Bottle Straw Cap (fits all bottle sizes)

YETI's own Bottle Straw Cap, which fits every Rambler bottle on the shared thread and ships with two straws. If you have a bottle and want a straw, this is the whole answer and you cannot buy the wrong size.

Fits.Fits YETI Rambler drinkware

Install note

Opened and read back on 2026-08-03: "YETI Rambler Bottle Straw Cap, Fits 18/26/36/46/64 oz Bottles", sold by the YETI Store, In Stock, 4.8 stars across 1,749 ratings, ranked #449 in Sports and Outdoors. Feature bullets: "Fits all YETI Rambler Bottle models" and "Every Rambler Bottle Straw Cap includes two straws. Not intended for hot or carbonated beverages." This is the first-party cap and it rests on the shared bottle thread.

official · official

For tumblers02

YETI Rambler 20 oz Replacement Straw Lid

YETI's own 20 oz Tumbler Straw Lid, the most reviewed single lid in the cluster, for the 20 oz Tumbler and the Medium-size cups that share its mouth. That rating pool is a family verdict, not a per-size one.

Fits.Fits YETI Rambler drinkware

Install note

Opened and read back on 2026-08-03: "Yeti Rambler 20oz Shatter-Proof Dishwasher Safe Replacement Lid Straw Yeti Rambler Tumbler Cup Mugs" (YETI model number 21070070007), sold by the YETI Store, availability "Only 16 left in stock", 4.8 stars across 14,910 ratings. That rating count is a variation-family pool across colours and sizes and is presented as such. The 20 oz Tumbler is on YETI's own Straw Lid fit list.

official

Pick 303

SOONSURE Tumbler Straw Lid for YETI Rambler (2 Pack)

The third-party tumbler straw lid to buy for two-in-a-pack or when YETI is out, and the one whose box prints the Stronghold exclusion word for word, which is the exact trap on this side.

Fits.Fits YETI Rambler drinkware

Install note

Opened and read back on 2026-08-03: "20 oz Tumbler Straw Lid, Replacement Lids Compatible for YETI Rambler 16/20 oz Stackable Cup, 24 oz Mug, 25 oz Straw Mug, BPA Free and Shatter-proof Travel Tumbler Top Lids Cover, 2 Pack", In Stock, 4.3 stars across 200 ratings, ranked #1,747. Feature bullet: "NOT compatible with rambler 20 oz or 30 oz travel mug with stronghold lid." Also states it is "not sponsored or endorsed by, or affiliated with the brands it fits." Its named vessels and its Stronghold exclusion match YETI's own Straw Lid page word for word.

official

Best value bottle kit04

FLORAPELL Straw Lid Kit for YETI Rambler Bottles

A bottle straw kit rather than a single part: two lids, four trimmable straws and two brushes, on the thread that fits every bottle, ruling out tumblers and growlers by name.

Fits.Fits YETI Rambler drinkware

Install note

Opened and read back on 2026-08-03: "Straw lid for Yeti Rambler 18 26 36 64 oz, Lid with Straws and Flexible Handle, Replacement Cap for Yeti 18oz 26oz 36oz 64oz Rambler Water Bottle Straw Cap", In Stock, 4.4 stars across 2,565 ratings. Feature bullet: "engineered to create a secure, leakproof seal on YETI Rambler 18 oz, 26 oz, 36 oz, and 64 oz water bottles ... NOT compatible with Ozark Trail, tumblers, or growlers." Ships two lids, four trimmable straws and two brushes.

official

Pick 505

Jmoe USA 2-in-1 Straw Lid for YETI Rambler Tumblers

A 2-in-1 straw-and-spout lid for the larger tumblers, and the clearest reminder that a tumbler lid is sized to a mouth, not a brand: the same part is sold for Reduce and Hydro Flask.

Fits.Fits YETI Rambler drinkware

Install note

Opened and read back on 2026-08-03: "Jmoe USA 42oz, 35oz, 30oz, 26oz Replacement Straw Lid For Yeti Rambler With Handle | Fits Reduce 40oz Tumblers | Fits Hydroflask Traveler 32oz & 40oz | 2-in-1 Leak Proof Accessory (2-Pack)", In Stock, 4.3 stars across 211 ratings. Feature bullet: "fits securely on 42oz, 35oz, 30oz, and 26oz sizes ... Also fits Reduce 40oz & 50oz tumblers and Hydroflask Traveler 32oz & 40oz." Its YETI sizes are Large MagSlider-mouth vessels; the straws are trimmable.

official

Just the straw06

MOVOLIVI Silicone Straws for YETI MagSlider Tumblers

For the person who has a working MagSlider and only lost the straw: silicone straws that drop through the MagSlider hole, trimmable to length, for a fraction of a lid.

Fits.Fits YETI Rambler drinkware

Install note

Opened and read back on 2026-08-03: "Silicone Straw for Yeti Rambler with Magnetic Slider, Multicolor | 2PCS Reusable Straws & 1 Cleaning Brush for Yeti 30/20 oz Tumbler with Magslider Lid, Adjustable Drinking Straw Accessories", In Stock, 4.3 stars across 586 ratings. Feature bullets: straws "measure 11 inches in length, with an inner diameter of 0.27 inches and an outer diameter of 0.39 inches" and are "specifically designed for yeti tumblers with magslider lids." It passes through the MagSlider, so the fit is to the lid opening, not the vessel thread.

official

Getting the straw lid right

Two questions settle it: bottle or tumbler, and do you actually need a lid at all?

  • Bottle: buy the one cap. The Bottle Straw Cap fits every Rambler bottle on the shared thread and ships with two straws. YETI sells it, and so do several third parties.
  • Tumbler or cup: buy the size. A tumbler Straw Lid is sized like a MagSlider. Medium covers the 20 oz Tumbler and the 16 to 25 oz cups and mugs; check your vessel against the list, not the sticker.
  • Not a Travel Mug. The tumbler Straw Lid is stated not to fit the 20 oz or 30 oz Stronghold Travel Mug. That is the same trap as the plain lids.
  • Not hot. YETI says do not use the tumbler Straw Lid with hot drinks. If your habit is coffee, that is a MagSlider or a Stronghold.
  • Maybe you only need a straw. If the lid is fine and the straw is what went missing or got chewed, a silicone straw drops through the MagSlider hole and costs a fraction of a lid.
  • The reviews are pooled. The largest count here belongs to a variation family, not to your one size.

What YETI sells, and where it stops

Read straight off YETI's own product pages on 2026-08-03:

| Straw part | Fits | Does not fit | | --- | --- | --- | | Bottle Straw Cap | all Rambler bottles, 18 to 64 oz | tumblers, cups | | Tumbler Straw Lid (Medium) | 16 to 25 oz cups, mugs, the 20 oz Tumbler | bottles; the 20 or 30 oz Stronghold Travel Mug; hot drinks |

The two facts that catch people are on the tumbler side. The first is the Stronghold exclusion: a Travel Mug looks like a tumbler and is not, and its Straw Lid is a different part. The second is the heat warning: the tumbler Straw Lid is a cold-drink part by YETI's own instruction.

On the bottle side there is really only one thing to know, and it is the good kind of boring: the cap fits every bottle, so you cannot buy the wrong size. Third-party bottle straw kits copy this exactly, and the better ones ship trimmable spare straws, which matters because the straw is usually the part that failed.

If the straw lid is not the answer

If the lid seals but the straw keeps slipping or splitting, buy the straw and keep the lid. If the lid itself is what cracked, and it is a plain drinking lid rather than a straw one, that is the lid replacement guide, including the MagSlider sizes and the 2020 Stronghold recall.

And the one table that puts every straw part, MagSlider and cap against every Rambler vessel is the accessories hub, which exists because YETI has never published it.

Questions owners ask

Does one straw cap fit every YETI Rambler bottle?

Yes. YETI states the Bottle Straw Cap "is compatible with all YETI Rambler Bottles," because the bottles share one thread. So a single straw cap covers the 18, 26, 36, 46 and 64 oz bottles, and you choose it by style rather than size.

Will a tumbler straw lid fit my Travel Mug?

No. YETI states the tumbler Straw Lid is "not compatible with the Rambler 20 or 30 oz Travel Mug with Stronghold Lid." A Travel Mug looks like a tumbler but takes a Stronghold lid, which is a different part with its own straw option.

Can I put a hot drink in a YETI straw lid?

Not the tumbler Straw Lid. YETI says outright, "Do not use the Rambler Tumbler Straw Lid with hot beverages." For hot drinks the right parts are the MagSlider or the Stronghold, which are drinking lids rather than straw ones.

Do you test these straw lids yourselves?

No. We compile what YETI publishes and what owners report, and we link both. Every listing here was opened by hand on 2026-08-03 with its title, availability, rating count and feature bullets read back. Nothing has been fitted to a cup by us.

Still kitting out the YETI Rambler drinkware?

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