---
product_id: 36778326
title: "Underworks FTM Extreme Tri-Top Chest Binder Top 983"
brand: "underworks"
price: "฿4291"
currency: THB
in_stock: true
reviews_count: 12
category: "Underworks"
url: https://www.desertcart.co.th/products/36778326-underworks-ftm-extreme-tri-top-chest-binder-top-983
store_origin: TH
region: Thailand
---

# 7 size options for perfect fit 3-layer medical-grade compression Made in USA, premium durability Underworks FTM Extreme Tri-Top Chest Binder Top 983

**Brand:** underworks
**Price:** ฿4291
**Availability:** ✅ In Stock

## Summary

> 🔥 Flatten your chest, elevate your confidence — invisibly.

## Quick Answers

- **What is this?** Underworks FTM Extreme Tri-Top Chest Binder Top 983 by underworks
- **How much does it cost?** ฿4291 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/36778326-underworks-ftm-extreme-tri-top-chest-binder-top-983)

## Best For

- underworks enthusiasts

## Why This Product

- Trusted underworks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Maximum Compression Power:** Triple-layer medical-grade fabric delivers unbeatable chest flattening.
- • **Precision Fit for Every Body:** 7 sizes from XS to 3X ensure tailored comfort and confidence.
- • **Invisible Under Your Wardrobe:** Low neckline and flat-stitched shoulders keep it discreet under any shirt.
- • **All-Day Comfort Meets Durability:** High-stretch nylon-spandex blend crafted in the USA for lasting wear.
- • **Athletic Fit for Active Lifestyles:** Sleeveless tri-top design supports movement without sacrificing compression.

## Overview

The Underworks FTM Extreme Tri-Top Chest Binder Top 983 offers powerful chest compression with three medical-grade fabric layers, available in 7 sizes for a precise fit. Designed with a low neckline and flat-stitched shoulders, it remains undetectable under clothing. Made in the USA from a high-stretch nylon-spandex blend, this athletic-fit, sleeveless binder balances maximum flattening with all-day comfort and durability.

## Description

Buy Underworks Unisex FTM Extreme Tri-Top Chest Binder Top 983 - Black Large and other Active at desertcart.com. Our wide selection is elegible for free shipping and free returns.

Review: Great compression, doesn’t lay completely flat - TL;DR: really good budget binder. Even with a larger chest and smaller frame it still does a great job flattening while the bottom edge stays flat on my ribs. Neckline bunches a bit so not for thinner, super fitted shirts **my sizes for reference: 29” ribs, 34” chest and got the Small size** I’ve gone on a binder blitz recently and gotten some from various companies. Honestly I didn’t have high hopes for this one since it was readily available on desertcart and didn’t cost a crazy amount. I’m glad I was wrong. This style (tri top) is the second style I have from Underworks, the first being the econo one (which compresses fine just the cut isn’t quite as precise as this one). I’ll say this was difficult for me to put on. Definitely couldn’t do it still being damp from a shower and I bet it would be hard to get off if I was sweaty. I can certainly feel the compression. I know having bigger boobs with a smaller frame I’m never going to be completely flat, but this gets me pretty darn close. While the bottom edge of this binder lays really flat on my ribs it still bunches a little, but not so much this it’s crazy noticeable through a t shirt (not super fitted). The neckline does bunch a bit more however, so I wouldn’t want to wear it under something very tight or thin. I didn’t do a lot of activity when I wore it but I would say definitely not for a high octane workout, at least if your boobs are that much bigger than your ribs because of the amount of compression. The straps do dig in occasionally on the shoulders but because they’re wider it’s not too uncomfortable until I can adjust it. After putting it on it was a bit of work trying to adjust my boobs only due to the arm holes being smaller (which hides my extra boobs spillage so not a sticking point for me) All in all I feel like it’s a great buy for the price and I’m shocked at the amount of compression I get
Review: Perfect binder for me - Amazing binder, been using underworks for years. While I do have a small chest la it may not work for everyone. It binds me flat and very natural looking. It feels a lot like a bathing suit and after a bit I don’t notice I’m wearing it. The fit was true to size too.

## Features

- Sizes - Measure Chest-Inches: X-small 28-30 / Small 31-33 / Medium 34-36 / Large 37-40 / X-large 41-44 / 2X 45-48 / 3X 49-52 If unsure, please order the next size up
- EXTREME FTM TRANSGENDER NON-BINARY GYNECOMASTIA CHEST FLATTENING CHEST BINDER - Flattens the chest and promotes a masculine looking chest
- 3 POWERFUL MEDICAL GRADE FABRIC LAYERS PROVIDE MAXIMUM COMPRESSION POWER - Feel the confidence of flatness!
- UNDETECTABLE UNDER CLOTHING - Neckline is cut low enough to not show through your shirts. Flat stitched around the shoulders for comfort.
- MADE IN USA - High Quality Construction for Maximum Durability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01M2CV9PR |
| ASIN  | B07C3GJXLR |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Back Style | T Back |
| Best Sellers Rank | #92,835 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1,409 in Men's Shops #3,144 in Men's Activewear |
| Brand Name | Underworks |
| Collection Name | All |
| Color | Black |
| Cuff Type | No Cuff |
| Customer Reviews | 4.1 4.1 out of 5 stars (1,112) |
| Date First Available  | November 2, 2016 |
| Department  | mens |
| Fabric Stretchability | Stretchable |
| Fabric Type | 70% Nylon, 30% Spandex |
| Fit Type | Athletic Fit |
| Fit to Size Sentiment | Positive |
| Import Designation | Made in USA |
| Item Length Description | Standard Length |
| Item Weight | 4 Ounces |
| Item model number  | 983 |
| Manufacturer  | Underworks |
| Manufacturer Part Number | BHBUKPPOAZIN2134 |
| Material Type | Nylon Blend |
| Model Name | Ftm Extreme Tri-top Chest Binder Top |
| Neck Style | Crew Neck |
| Occasion Type | Vacation |
| Pattern | Solid |
| Product Care Instructions | Wash warm, tumble dry low, no bleach, no iron |
| Product Dimensions  | 7 x 6 x 0.5 inches; 4 ounces |
| Shirt Form Type | Crop |
| Shoulder to Bottom Hem Length | 13 Inches |
| Sleeve Length Description | Sleeveless |
| Sleeve Type | Sleeveless |
| Sport Type | Exercise and Fitness |
| Style Name | Tri-top Chest Binder Top |
| Style Number | 983 |
| UPC | 846330029560 |
| Unit Count | 1 Count |
| character | sports |
| collar-type | Collarless |

## Images

![Underworks FTM Extreme Tri-Top Chest Binder Top 983 - Image 1](https://m.media-amazon.com/images/I/71mqxVPH3fL.jpg)
![Underworks FTM Extreme Tri-Top Chest Binder Top 983 - Image 2](https://m.media-amazon.com/images/I/71ZtJ0Hq7IL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: How to wear?**
A: Hold both straps of the shirt and step into the garment. Pull up the garment and slide arms through armhole and adjust for comfort.

**Q: How to care?**
A: Wash in cold water, gentle cycle, tumble dry low or flat dry. No bleach, no iron.

**Q: How measure your chest?**
A: With arms down on side, take a snug measurement around the fullest part of your chest over the nipples.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great compression, doesn’t lay completely flat
*by S***K on August 21, 2025*

TL;DR: really good budget binder. Even with a larger chest and smaller frame it still does a great job flattening while the bottom edge stays flat on my ribs. Neckline bunches a bit so not for thinner, super fitted shirts **my sizes for reference: 29” ribs, 34” chest and got the Small size** I’ve gone on a binder blitz recently and gotten some from various companies. Honestly I didn’t have high hopes for this one since it was readily available on Amazon and didn’t cost a crazy amount. I’m glad I was wrong. This style (tri top) is the second style I have from Underworks, the first being the econo one (which compresses fine just the cut isn’t quite as precise as this one). I’ll say this was difficult for me to put on. Definitely couldn’t do it still being damp from a shower and I bet it would be hard to get off if I was sweaty. I can certainly feel the compression. I know having bigger boobs with a smaller frame I’m never going to be completely flat, but this gets me pretty darn close. While the bottom edge of this binder lays really flat on my ribs it still bunches a little, but not so much this it’s crazy noticeable through a t shirt (not super fitted). The neckline does bunch a bit more however, so I wouldn’t want to wear it under something very tight or thin. I didn’t do a lot of activity when I wore it but I would say definitely not for a high octane workout, at least if your boobs are that much bigger than your ribs because of the amount of compression. The straps do dig in occasionally on the shoulders but because they’re wider it’s not too uncomfortable until I can adjust it. After putting it on it was a bit of work trying to adjust my boobs only due to the arm holes being smaller (which hides my extra boobs spillage so not a sticking point for me) All in all I feel like it’s a great buy for the price and I’m shocked at the amount of compression I get

### ⭐⭐⭐⭐⭐ Perfect binder for me
*by M***S on March 13, 2026*

Amazing binder, been using underworks for years. While I do have a small chest la it may not work for everyone. It binds me flat and very natural looking. It feels a lot like a bathing suit and after a bit I don’t notice I’m wearing it. The fit was true to size too.

### ⭐⭐⭐⭐ NOT DISCREET, but great product
*by A***X on September 3, 2025*

This binder fit really well, I am a 32 C and I am incredibly flat with this on! I really love the product and the material is pretty nice. It’s not very soft, but the panel in the front does its job well. It cuts into my armpits a bit, but not enough to bother me too badly. The neck and straps go kind of high up, so it’s not really suitable for low-cut shirts. That being said, the packaging is not discreet at ALL. Luckily for me, this wasn’t a problem, but something to keep in mind for those ordering. The product came in the original manufacturer’s bag, product label visible, with no shipping pouch or box at all.

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**Shop now:** [https://www.desertcart.co.th/products/36778326-underworks-ftm-extreme-tri-top-chest-binder-top-983](https://www.desertcart.co.th/products/36778326-underworks-ftm-extreme-tri-top-chest-binder-top-983)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-24*