---
product_id: 334543229
title: "509 FZN Merino Pants (Black - Medium)"
brand: "509"
price: "HK$4231"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/334543229-509-fzn-merino-pants-black-medium
store_origin: HK
region: Hong Kong
---

# 40% Synthetic Fiber Warmth LVL 2 250 GSM Merino Wool 509 FZN Merino Pants (Black - Medium)

**Brand:** 509
**Price:** HK$4231
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate Your Adventure in Style!

## Quick Answers

- **What is this?** 509 FZN Merino Pants (Black - Medium) by 509
- **How much does it cost?** HK$4231 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/334543229-509-fzn-merino-pants-black-medium)

## Best For

- 509 enthusiasts

## Why This Product

- Trusted 509 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Breathe Easy:** Breathable fabric ensures you stay comfortable, no matter the activity.
- • **Elevate Your Comfort:** Experience the luxurious feel of Alpine Merino wool blended for ultimate softness.
- • **Lightweight Performance:** Weighing in at just 225g, these pants are your go-to for all-day wear without the bulk.
- • **Stay Warm, Stay Stylish:** Designed with a warmth level of 2, perfect for those chilly adventures.
- • **Durability Meets Flexibility:** Crafted with 40% synthetic fiber and 10% nylon for enhanced structure and longevity.

## Overview

The 509509 FZN Merino Pants are expertly crafted from a blend of 250 GSM Alpine Merino wool and synthetic fibers, providing warmth, durability, and breathability. Weighing only 225g, these medium-sized black pants are designed for comfort and performance, making them an essential addition to your outdoor wardrobe.

## Description

509 FZN Merino Pants (Black - Medium)

## Features

- Materials: Alpine Merino - 250 GSM 20 micron wool, blended with 40% synthetic fiber, and 10% nylon for structure and durability
- Warmth: LVL [2]

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | 509 US |
| Brand | 509 |
| Model | Fzn Merino Pants |
| Product Dimensions | 60.96 x 30.48 x 5.08 cm; 225 g |
| Item model number | F05000400-130-001 |
| Manufacturer Part Number | F05000400-130-001 |
| OEM Part Number | F05000400-130-001 |
| Outer Material | Other |
| Material | Wool Blend, Nylon, Rayon, Wool |
| Waist | 34 Inches |
| Inseam | 31 Inches |
| Size | Medium |
| Colour | Black |
| Special Features | Breathable |
| Manufacturer | 509 US |
| Item Weight | 225 g |

## Images

![509 FZN Merino Pants (Black - Medium) - Image 1](https://m.media-amazon.com/images/I/51VDp1PaLGL.jpg)
![509 FZN Merino Pants (Black - Medium) - Image 2](https://m.media-amazon.com/images/I/51yA3NZC4BL.jpg)
![509 FZN Merino Pants (Black - Medium) - Image 3](https://m.media-amazon.com/images/I/51jIWpsj3nL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.hk/products/334543229-509-fzn-merino-pants-black-medium](https://www.desertcart.hk/products/334543229-509-fzn-merino-pants-black-medium)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-31*