As an industry-leading designer jacket manufacturer, Shizulong (ON THE WAY) has one of its core missions to answer consumers' most fundamental questions: What to look for in a waterproof jacket? And, on a deeper level: What makes a jacket waterproof? The direct answer is that a jacket's waterproof performance is determined by the Hydrostatic Head (HH) rating, while breathability is measured by the Moisture Vapor Transmission Rate (MVTR). A truly waterproof jacket must also feature critical craftsmanship such as sealed seams and waterproof zippers. This article will serve as a detailed guide from a professional designer jacket manufacturer, taking you through the entire process from core technologies to selection and maintenance.
What Makes a Jacket Waterproof? The Science Behind Hydrostatic Head
When a jacket claims to be "waterproof," it's based on rigorous scientific standards, not a vague concept. The core factor is the Hydrostatic Head (HH) rating. This measures the amount of water pressure the fabric can withstand before water begins to seep through, typically represented in millimeters (mm) of water column height. The higher the number, the greater the fabric's resistance to water penetration.
Breathability: Why It's Just as Important as Waterproofing
Shizulong, a designer jacket manufacturer focused on user experience, understands that “waterproof” is a two-way street: it must prevent rain from entering while also allowing sweat to escape. Breathability is measured by the Moisture Vapor Transmission Rate (MVTR), which indicates how many grams of water vapor can pass through one square meter of fabric in 24 hours (g/m²/24h). The higher the number, the better the breathability.
Below 10,000 g/m²/24h
Suitable for low-intensity activities.
10,000–20,000 g/m²/24h
Ideal for hiking, cycling, and moderate-intensity activities. Most of Shizulong's product lines focus on this performance range.
Above 20,000 g/m²/24h
Designed for high-altitude climbing, trail running, and other high-intensity activities. Our high-end series uses self-developed breathable membrane technology to ensure dryness during intense workouts.
Additionally, many Shizulong jackets feature ventilation zippers under the arms, acting as active heat dissipation channels to further improve comfort.
Waterproof vs. Water-Repellent (DWR): The Essential Difference
This is a crucial distinction, and it's something that professional designer jacket manufacturers must clarify:
● Waterproof
Relies on an internal micro-porous film (like ePTFE membrane) or coating to fundamentally block liquid water molecules while allowing sweat to escape. Seams must be tape-sealed, which is a hallmark of a true waterproof jacket.
● Water-Repellent (DWR)
A chemical treatment applied to the fabric's surface that causes rain to bead up and roll off, but it can't withstand sustained water pressure. DWR is the "first line of defense" for waterproof jackets and wears off with use, but it can be restored with maintenance.
Quick Tip: Check if the jacket's inner seams have tape seals and whether the tag shows a clear hydrostatic head value. This is Shizulong's commitment to each product.
Types of Waterproof Jackets: Shizulong's Precise Match
The choice of jacket structure depends on your core usage scenario. Shizulong offers a full range of options:
● 2-Layer Jackets
Suitable for casual daily wear and travel. They offer good value and durability but may have slightly less breathability and packability.
● 2.5-Layer Jackets
These strike a perfect balance between lightness, portability, and price, making them ideal for hiking and running. Shizulong's lightweight series excels in this area.
● 3-Layer Jackets
These combine a waterproof breathable membrane, outer fabric, and protective layer, providing the best durability, protection, and breathability, specially designed for harsh environments. This is Shizulong's flagship technology for professional series.
How to Choose Based on Activity? Shizulong's Scenario-Based Solutions
● Urban Commuting & Daily Walking
Choose a slightly looser 2-layer or 2.5-layer jacket that focuses on fabric quality and design. Adjustable hoods, hemlines, and cuffs are key.
● Hiking & Cycling
Opt for a 2.5-layer or 3-layer jacket with excellent breathability (MVTR >15,000). Shizulong's products in this category are specially optimized with underarm ventilation and pocket layouts compatible with backpacks.
● Mountaineering & Extreme Environments
A high-performance 3-layer jacket is a must. Shizulong's professional models reinforce areas prone to wear, such as the shoulders and elbows, and include features like helmet-compatible hoods, extended rear hems, and snow skirts to tackle severe challenges.
Key Features to Look For: Shizulong's Craftsmanship
● Hood
Must be three-dimensionally adjustable with a hard brim to ensure clear visibility in wind and rain.
● Zippers & Seams
YKK waterproof zippers with windproof flaps. All seams must be fully tape-sealed—this is a core part of Shizulong's quality control.
● Pockets
Designs include chest pockets above backpack waist straps, handwarmer pockets, and secure inner pockets.
● Adjustability
Elastic cuffs, drawcord hems, and other designs to prevent rain and wind from entering.
Shizulong's Professional Care Recommendations
Proper care can significantly extend the life of your jacket:
● Cleaning
Regularly wash with a special detergent (avoid fabric softeners) to gently restore fabric breathability.
● Reactivating DWR
When the surface no longer beads water, use spray-on or wash-in water-repellent treatments to restore its effect.
● Repairs
Small holes can be patched with specialized repair tape; if tape-seals start to peel, contact Shizulong's after-sales service for professional repairs.
Summary
Choosing a reliable waterproof jacket requires comprehensive consideration of the Hydrostatic Head (HH) rating, Moisture Vapor Transmission Rate (MVTR), jacket structure (2/2.5/3-layer), and detailed craftsmanship. As a designer jacket manufacturer focused on technology and innovation, Shizulong (ON THE WAY) has invested deeply in materials science and user needs. We believe that understanding what makes a jacket waterproof is the first step toward making an informed choice. We hope this guide from a professional designer jacket manufacturer helps you find the perfect jacket that you can trust in any weather.
