---
product_id: 34464746
title: "Rothco ECWCS Gen III Mid-Weight Underwear Bottoms"
brand: "rothco"
price: "R1972"
currency: ZAR
in_stock: true
category: "Rothco"
url: https://www.desertcart.co.za/products/34464746-rothco-ecwcs-gen-iii-mid-weight-underwear-bottoms
store_origin: ZA
region: South Africa
---

# Moisture-wicking quick-dry tech Mid-weight grid fleece insulation Flexible polyester/spandex blend Rothco ECWCS Gen III Mid-Weight Underwear Bottoms

**Brand:** rothco
**Price:** R1972
**Availability:** ✅ In Stock

## Summary

> ❄️ Own the cold, don’t let it own you!

## Quick Answers

- **What is this?** Rothco ECWCS Gen III Mid-Weight Underwear Bottoms by rothco
- **How much does it cost?** R1972 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/34464746-rothco-ecwcs-gen-iii-mid-weight-underwear-bottoms)

## Best For

- rothco enthusiasts

## Why This Product

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

## Key Features

- • **Layer Like a Pro:** Pairs perfectly with matching ECWCS Gen III tops for unbeatable cold-weather defense
- • **Sweat? What Sweat?:** Advanced moisture-wicking keeps you dry and comfortable all day
- • **Move Like You Mean It:** Stretchy grid fleece fabric flexes with every move—no restrictions
- • **Tactical-Grade Comfort:** Elastic waistband and access fly designed for active-duty precision
- • **Engineered for Arctic Endurance:** Stay warm down to -40°F with military-grade insulation

## Overview

Rothco ECWCS Gen III Mid-Weight Underwear Bottoms are military-issued, insulated base layers crafted from breathable polyester/spandex grid fleece. Designed for extreme cold down to -40°F, they wick moisture away to keep you dry and feature a flexible fit with an elastic waistband and access fly. Ideal for tactical professionals and outdoor enthusiasts seeking reliable warmth and comfort in harsh winter conditions.

## Description

Buy Rothco ECWCS Gen III Mid-Weight Underwear Bottoms AR 670-1 Coyote Brown L | Thermal Grid Fleece Mid-Weight Winter Base Layer Cold Weather Pants for Men: Shop top fashion brands Pants at desertcart.com ✓ FREE DELIVERY and Returns possible on eligible purchases

## Features

- Powerful Insulation: Made from breathable, mid-weight grid fleece material that is great for layering, our ECWCS Gen III Level II Underwear Bottoms are designed to keep you warm, comfortable, and dry, even in the harshest winter weather
- Stay Warm & Dry: The base layer pants wick sweat and moisture away for optimum comfort, swiftly transferring it to the top layer for a quick dry, allowing you to move freely without your clothing sticking to you
- Comfortable Fit: Built from a soft polyester / spandex blend, the grid fleece fabric easily flexes and contorts with your body for optimum comfort; the base layer pants feature an access fly, along with an elastic waist and leg bottoms
- Active-Duty Approved: The thermal bottoms are part of the Extended Cold Weather Clothing System (ECWCS) and are a must-have for any active-duty personnel, tactical professional, or outdoor enthusiast in cold climates
- Better Together: Stay warm and comfortable this winter with our matching ECWCS Gen III Level II Underwear Tops; the base layer shirt features the same breathable, mid-weight grid fleece material as the bottoms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01M15RJU2 |
| Age Range Description | Adult |
| Apparel Closure Orientation | Front |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Apparel Occasion and Lifestyle | Work Utility |
| Best Sellers Rank | #320,992 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #92 in Men's Military Pants |
| Brand Name | Rothco |
| Care instructions | Hand Wash Only |
| Closure type | Pull On |
| Color | Ar 670-1 Coyote Brown |
| Customer Reviews | 4.7 out of 5 stars 800 Reviews |
| Fabric Stretchability | Stretchable |
| Fabric Type | 93% Polyester, 7% Spandex |
| Fabric type | 93% Polyester, 7% Spandex |
| Fit Type | Regular |
| Fit to Size Sentiment | Fits True To Size |
| Front Pleat Type | Flat Front |
| Front Pocket Count | 1 |
| Garment Size Country | United States |
| Global Trade Identification Number | 00613902369450 |
| Import Designation | Imported |
| Item Length Description | Standard Length |
| Item Type Name | Leggings |
| Item Weight | 27.22 g |
| Leg Style | Straight |
| Manufacturer | Rothco |
| Manufacturer Part Number | 16279 |
| Material Type | Polyester Blend |
| Model Name | Ecwcs Gen III |
| Number of Items | 1 |
| Occasion Type | Camping, Casual, Hiking |
| Origin | Imported |
| Pants Form Type | Cargo |
| Pattern | Solid |
| Pattern Style | Solid |
| Pocket Description | Utility Pocket |
| Product Care Instructions | Hand Wash Only |
| Rise Style | Mid Rise |
| Seasons | Winter |
| Sleeve Length Description | Sleeveless |
| Sport Type | Camping |
| Style Name | Ecwcs Gen III Mid-weight Underwear Bottoms |
| Style Number | 16279 |
| UPC | 613902369450 |
| Unit Count | 1 Count |
| Waist Size | 38 inches |
| character | sports |

## Images

![Rothco ECWCS Gen III Mid-Weight Underwear Bottoms - Image 1](https://m.media-amazon.com/images/I/614kEuKVF6L.jpg)

## Available Options

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

## Questions & Answers

**Q: What size for a 5'4" 125 female**
A: I would probably go with a small, or a medium, depending on how much weight you cary in your legs. I'm 5'9 200 and the large fit me well, but I have thicker thighs.

**Q: Can anyone tell me the length of the XS ?  My son is extremely slim and about 5’8...  he is about a 26/27 waist.. small would be to big in my opinion**
A: XS should fit.

**Q: I'm 6,2 170pds should i get the large or x-large?**
A: I'm 5,8 205pds and the large fit fine except they were about 4 inches too long for my height.

**Q: My husband is 6'4" and 220lbs what size should I get?**
A: Husband is 5'6 180 lbs got a large, so either xl or xxl

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**Shop now:** [https://www.desertcart.co.za/products/34464746-rothco-ecwcs-gen-iii-mid-weight-underwear-bottoms](https://www.desertcart.co.za/products/34464746-rothco-ecwcs-gen-iii-mid-weight-underwear-bottoms)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-27*