The Swim Binder Crop is a swimming chest binder designed for trans men, trans masculine and nonbinary people who want chest compression in the water — without compromising comfort, movement, or confidence.
Made from 86% Nylon + 14% Elastane, the fabric is quick-drying, chlorine resistant and UV protective, and stays lightweight and flexible whether you're swimming laps, catching waves, or just enjoying a beach day. Like all Transform binders, it has no rigid panels, so your ribcage can expand naturally when you breathe.
The crop length sits at the midriff and pairs naturally with our swim trunks. If you prefer more coverage, our Swim Binder Tank sits at the hip.
Available in Steel Blue and Moss Green.
Not sure which size to choose? Measure around the fullest part of your chest and use the size chart below. Our team is happy to help — get in touch.
| Size | Full / Mid Chest (in) | Under Bust (in) | Upper Chest (in) |
| XXS | 27.56 - 30.71 | 25.59 - 27.56 | 27.17 - 31.10 |
| XS | 31.10 - 36.61 | 27.95 - 31.50 | 31.50 - 35.83 |
| S | 37.01 - 40.16 | 31.89 - 35.04 | 36.22 - 38.98 |
| M | 40.55 - 44.09 | 35.43 - 38.19 | 39.76 - 43.31 |
| L | 44.88 - 48.43 | 38.58 - 41.73 | 43.70 - 47.64 |
| XL | 48.82 - 52.76 | 42.13 - 46.06 | 48.03 - 51.97 |
| 2XL | 53.15 - 57.09 | 46.46 - 50.39 | 52.36 - 56.30 |
| 3XL | 57.48 - 62.20 | 50.79 - 55.51 | 56.69 - 61.42 |
| 4XL | 62.60 - 68.11 | 55.91 - 61.42 | 61.81 - 67.32 |
| 5XL | 68.50 - 74.80 | 61.81 - 68.11 | 67.72 - 73.62 |
What is a Swim Binder? Your Complete Guide
Can You Swim in a Chest Binder?
How to Choose a Swim Binder: Tank vs Crop
Shop all swim binders
Size + Fit
Our chest binders come in 10 different sizes and multiple different styles, meaning we have a binder for every body shape and size.
Fit Notes:
When you try your chest binder on for the first time, move your arms and bend your torso in all directions to ensure you have no rubbing, chaffing or restricted movement. Our chest binders are designed to be comfortable and allow for free movement and breathing, so if you experience any discomfort, your chest binder is likely too small.
How do I put my chest binder on?
Our binders and compression tops do not have any rigid panels like many other binders, which means that it should be easy enough to pop on over your head as with any other top. If it's too difficult to pop on over your head then you probably have the wrong size and should go up one size.
Care Instructions
Fabric Composition + Breathability
Our chest binders and swim binders are all made from a premium compression fabric made up of 86% Nylon + 14% Elastane. The fabric is super soft to the touch, breathable and durable. Our adjustable crop binders and tank binders also have a separate mesh breathable panel across the back designed to prevent overheating.
