How to Choose the Best Rain Pants: A Comprehensive Guide

Are you unsure how to choose the best rain pants for your outdoor adventures? Whether you're hiking, backpacking, or tackling other outdoor activities, selecting the right rain pants is crucial to staying dry and comfortable. This guide will walk you through the most important factors to consider, including waterproofing, breathability, and durability, so you can confidently pick the perfect pair for your needs.

The primary purpose of rain pants is to keep you dry, so waterproofing is essential. Look for materials like Gore-Tex , eVent , or other proprietary membranes from reputable outdoor brands. These fabrics are designed to repel water while still allowing sweat vapor to escape, keeping you dry from both external moisture and internal perspiration.

Waterproof ratings are measured in millimeters (mm), indicating the water pressure a fabric can withstand before leaking. A rating of 10,000mm or higher is considered highly waterproof. However, higher ratings can sometimes sacrifice breathability.

Breathability is equally crucial, especially for high-exertion activities like hiking. To prevent overheating and internal moisture buildup, look for breathability ratings in grams of water vapor per square meter per 24 hours ( g/m²/24hr ). A rating of 10,000 g/m²/24hr or higher is ideal for most outdoor activities.

If you plan to carry your rain pants in your backpack, lightweight and packable options are ideal. Some ultralight rain pants weigh as little as 5-6 ounces and can pack down to the size of a small water bottle. Keep in mind that ultralight pants might compromise durability.

Durability is often determined by the fabric's denier rating (D) , which measures fabric thickness. For occasional use, 30D-50D fabrics may be sufficient. If you’re trekking through rugged terrain or using rain pants frequently, opt for 70D or higher fabrics, especially in high-wear areas like the knees and seat.

Rain pants should offer a comfortable fit with plenty of room for movement. Features like articulated knees and a gusseted crotch allow for greater mobility. If you plan to wear layers underneath, look for a relaxed fit.

When selecting rain pants, consider ease of use. Full-length side zippers are convenient for putting on and taking off pants without removing boots. Partial-length zippers (from the ankle to knee) can provide a balance between convenience and weight savings.

Additional Features to Consider

• Adjustable waist : For a secure fit and water resistance.
• Pockets : Handy for storage, though they may create leak points.
• Reinforced knees and seat : Extra durability in high-wear areas.
• Ankle zippers : For ventilation and ease when pulling pants over boots.
• Built-in gaiters : Added protection from water entering from the bottom.

Rain pants range from budget-friendly options around $50 to high-end models costing $200 or more. Higher-priced options typically offer better performance and durability, but there are great choices at every price point.

Consider the primary activities you’ll be doing and the climate you’ll encounter:

• For occasional use in mild conditions, lightweight and packable pants are sufficient.
• For extended trips or harsh weather, invest in durable, feature-rich pants.
• For high-intensity activities , prioritize breathability and mobility.

Understanding different weather shell types can help you choose the right rain pants:

1. Hard Shells : Waterproof and breathable, offering maximum protection from rain and wind.
2. Soft Shells : Water-resistant and breathable, best for high-exertion activities.
3. Hybrid Shells : Combine waterproof fabrics with breathable materials.
4. Insulated Shells : Water-resistant with added insulation for warmth.

Breathability is key for comfort. Here's what to look for:

1. Moisture management : Allows sweat vapor to escape.
2. Comfort : Reduces the clammy feeling inside the pants.
3. Vapor permeability : Measured in g/m²/24hr ; higher numbers indicate better breathability.
4. Activity level : More breathability is essential for strenuous activities.

There are two main waterproofing technologies in outdoor gear: laminates and coatings :

• Laminates : Offer superior waterproofing and breathability. Common brands include Gore-Tex and eVent .
• Coatings : More affordable but less durable and breathable than laminates.

Additionally, most waterproof garments have a Durable Water Repellent (DWR) coating to keep the outer fabric from becoming saturated with water.

When selecting rain pants , consider waterproofing, breathability, weight, and durability. Understanding the different types of weather shells and waterproof/breathable fabrics will help you make an informed decision. Whether you’re preparing for casual outdoor activities or intense adventures, the right rain pants will keep you dry, comfortable, and ready for any condition.