Thirsties Trainers
The Thirsties Trainers comes in 4 sizes, lists sizes up to 56 lb, and starts with a size for babies up to 27 lb, per Thirsties.
- Small to Extra LargeSizes
How the Trainers stacks up
Against the 21 training pants we track. The shaded band is where the middle half of them fall; the dot is this one.
Within the typical range for training pants (3 to 4).
Within the typical range for training pants (44 lb to 65 lb).
Below the typical range for training pants (33 lb to 34 lb).
What sets the Trainers apart
Measured against the 21 training pants we compare, from each maker's published specs.
- 4th smallest first sizeof the 18 training pants with it published: 27 lb
- Top listed weight: 56 lbin the middle half of the 18 training pants that publish it (44 lb to 65 lb)
Next to its closest matches
- Charlie Banana Reusable Training Pants, SnapsNext to it, the Trainers is 15 lb higher; 7 lb bigger.
- Pull-Ups Potty Training Pants with Learning LayerNext to it, the Trainers is 1 fewer size; 19 lb lower; 7 lb smaller.
- Pull-Ups Skin Essentials Potty Training PantsNext to it, the Trainers is 1 more size; 6 lb higher; 7 lb smaller.
Size & weight chart
Weights as the maker lists them, in lb.
| Size | Weight | Shared with next size |
|---|---|---|
| Small | 20–27 lb | 26–27 lb |
| Medium | 26–35 lb | 33–35 lb |
| Large | 33–45 lb | 42–45 lb |
| Extra Large | 42–56 lb | – |
Cloth system & wash
| Type | Cloth training pant |
|---|---|
| Closure | pull-on |
| Fabric | Inner: four layers of certified organic cotton; wet zone: waterproof TPU laminate; outer fabric not specified (per the maker) |
| Washing, per the maker | Prep with 1 to 3 washes before first use. Routine: warm prewash, hot wash, warm rinse. Remove solids first. Hang dry or low heat. |
Listed features
- Four sizes with weight ranges
- Organic cotton interior (per the maker)
Worth checking
- Weight ranges overlap
- Cannot replace a diaper
Where to buy the Trainers
Prices and availability change. We may earn a commission from some links.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
Full specs
| Thirsties Trainers | |
|---|---|
| Type | Training pants (cloth trainer) |
| Sizes and weights | Small: 20–27 lb; Medium: 26–35 lb; Large: 33–45 lb; Extra Large: 42–56 lb |
| Closure | pull-on |
| Materials | Four layers of certified organic cotton inside, waterproof TPU laminate wet zone (per the maker). |
| Fabric | Inner: four layers of certified organic cotton; wet zone: waterproof TPU laminate; outer fabric not specified (per the maker) |
| Care | Prep with 1 to 3 washes before first use. Routine: warm prewash, hot wash, warm rinse. Remove solids first. Hang dry or low heat. |
Compare the Trainers with
How each closest rival differs from the Trainers, from the makers' specs.
- Charlie BananaReusable Training Pants, Snaps4 sizesto 41 lb
- 15 lb lower
- 7 lb smaller
- Pull-UpsPotty Training Pants with Learning Layer5 sizesto 75 lb
- 1 more size
- 19 lb higher
- 7 lb bigger
- Pull-UpsSkin Essentials Potty Training Pants3 sizesto 50 lb
- 1 fewer size
- 6 lb lower
- 7 lb bigger
- Pull-UpsNight*Time Training Pants4 sizesto 60 lb
- 4 lb higher
- 7 lb bigger
Trainers: questions answered
From Thirsties's published specs, last checked 2026-11-02.
What sizes does the Thirsties Trainers come in?
Small (20–27 lb), Medium (26–35 lb), Large (33–45 lb), Extra Large (42–56 lb), per the maker. Makers size diapers by weight, and their ranges overlap. Check the maker's size chart.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
More training pants
- Pull-UpsPlus Potty Training Pants5 sizesto 75 lb
- GoodNitesNighttime Underwear3 sizesto 68 lb
- PampersEasy Ups Training Pants
- PampersEasy Ups Ultra Training Pants
- CoterieThe Pant4 sizesto 62 lb
- CoterieThe 360°3 sizesto 40 lb
Where these specs come from
Last checked 2026-11-02. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.