Carhartt Men's Storm Defender Loose Fit Heavyweight (Style 425Q)

Our review of the Carhartt Men's 104670 Storm Defender Loose Fit Heavyweight Jacket finds it best for outdoor workers and anyone needing a reliable, layer-friendly rain jacket. The single biggest reason to buy is the combination of the jacket's Storm Defender waterproof, breathable technology and a loose cut that lets you layer a sweatshirt or hoodie under it for added warmth without restricting movement. It is built to keep light to moderate rain and wind off while allowing sweat to escape, making it practical for changing conditions on the job or during yard work.

Key Features

• Storm Defender 10K/10K: Waterproof and breathable membrane blocks rain while moving sweat away so you stay drier during active work.
• Fully-taped seams: Seams are sealed to prevent water entry at stitching lines, improving overall waterproof performance.
• Wind Fighter technology: Fabric construction reduces wind chill so the jacket performs well in blustery conditions.
• Loose fit for layering: Roomy cut gives space to wear a sweatshirt or hoodie underneath for added warmth without bulk.
• Full-zip with storm flaps: Inner and outer storm flaps at the front zipper add another barrier against driving rain and drafts.
• Mesh body lining: Polyester mesh in the body promotes airflow next to layers, helping comfort during activity.

Who It's For

The jacket is aimed at men who work outdoors or spend time outside in spring and fall and need dependable protection from rain and wind while still being able to layer. Its loose fit and robust construction suit construction, landscaping, delivery, and other active jobs where freedom of movement matters.

Those who want a lightweight, packable rain shell for travel or a fashion-forward urban coat should look elsewhere; this is a heavyweight, work-focused jacket meant for durability and function over minimal pack size or trim styling.

Pros & Cons

Pros

• Reliable waterproofing with a 10K/10K Storm Defender membrane that keeps out light to moderate rain.
• Durable build and materials that customers report hold up to regular use on the job.
• Loose fit allows layering for warmth, making it versatile across seasons.

Cons

• Heavyweight construction makes it less packable and a bit bulky compared with lightweight shells.
• Sizing can vary for some buyers, so trying on over the layers you plan to wear is advisable.

Specifications

Brand	Carhartt
Model	104670 Storm Defender
Waterproof Rating	10K/10K waterproof/breathable
Seams	Fully-taped waterproof seams
Fit	Loose fit for layering
Lining	Polyester mesh lining in the body
Closure	Full-zip front with inner and outer storm flaps

Our Verdict

The Carhartt 104670 Storm Defender jacket is a solid choice for anyone who needs a durable, waterproof work jacket that accommodates layering. It delivers strong wind and rain protection, breathes well for active work, and represents good value for those prioritizing function and longevity over ultralight packability.

Frequently Asked Questions

Is this jacket waterproof enough for heavy rain?
The Storm Defender 10K/10K membrane and fully-taped seams handle light to moderate rain well; for prolonged heavy downpours, additional coverage or shelter is recommended.

Can you wear a hoodie underneath?
Yes, the loose fit is designed to allow a sweatshirt or hoodie beneath for extra warmth and layering.

Does it breathe during active use?
Yes, the breathable membrane and polyester mesh body lining help move sweat away so it is comfortable during active outdoor work.