How do I layer for cold-weather fishing?

Combine a wicking base layer, insulating mid-layer, and waterproof shell for warmth and comfort.

How should I care for my thermal clothing?

Wash in cold water, skip softeners, and air-dry to preserve insulation and moisture-wicking properties.

What makes Simms fly fishing gear stand out?

Simms builds durable, high-performance waders, boots, and outerwear trusted by anglers worldwide.

Where is Simms gear made?

Premium models like the G3 Guide and G4Z waders are made in Bozeman, Montana, USA.

Are Simms waders waterproof and breathable?

Yes. Simms uses GORE-TEX® and advanced fabrics for waterproof, breathable comfort.

Where can I buy Simms gear in Canada?

At Drift Outfitters & Fly Shop in Toronto or online with fast Canada-wide shipping.

Simms - Thermal Midlayer Bottom (Pant) - Black

Q: Why is layering important for fly fishing?

Layering keeps you warm, dry, and comfortable by combining moisture-wicking, insulating, and weatherproof layers.

Q: What types of layering clothing do you sell?

We offer base layers, fleece, insulated jackets, and soft shells for warmth and mobility in any season.

Q: What materials are best for thermal and layering clothing?

Merino wool, polyester, and fleece fabrics wick moisture, insulate effectively, and dry quickly.

Q: Which thermal clothing brands do you carry?

Drift Outfitters carries Simms and Patagonia — trusted for warmth and technical performance.

$124.95

$124.95 ~~$124.95~~

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Product Description

Simms Thermal Midlayer Bottom – Black – Maximum warmth without bulk.

The Simms Thermal Midlayer Bottom in Black is designed to keep you warm and comfortable during the coldest fishing conditions. Built with a grid-fleece interior, these pants trap heat close to the body while maintaining breathability and efficient moisture management. The lightweight design ensures excellent mobility without unnecessary bulk, making them the perfect layering piece under waders or outerwear. Durable and performance-driven, the Thermal Midlayer Bottom is built for anglers who demand comfort and warmth without sacrificing range of motion. Ideal for long days on icy rivers or cold-weather adventures, this is Simms’ warmest midlayer pant. Shop online or visit Drift Outfitters in Toronto for expert advice and fast shipping anywhere in Canada.

Smooth faced grid-fleece layers perfectly with our baselayers to provide maximum warmth
Self fabric waistband with dual snap closure and zippered fly allow for easy on and off transitions
Dual slash handwarmer pockets
Patterned with a gusseted crotch for maximum comfort and easy layering with bibs or waders.
Tapered hem for a streamline fit when wearing layers underneath and over top

FABRIC TECH: Body - 7.52 oz./yd.²(255gsm) 93% polyester, 7% elastane finished with antimicrobial + moisture management

Thermal & Layering FAQ

Q: Why is layering important for fly fishing?
A: Layering helps you stay comfortable and adaptable in changing weather conditions. By combining moisture-wicking base layers, insulating mid-layers, and protective outer layers, you can regulate temperature, stay dry, and fish comfortably in any season — from chilly steelhead mornings to cool alpine streams.

Q: What types of layering clothing do you sell?
A: Drift Outfitters carries a complete range of thermal and layering pieces including base layers, fleece, insulated jackets, and soft shells. These garments are designed to keep you warm and dry without restricting movement, making them perfect for fishing and outdoor adventures year-round.

Q: What materials are best for thermal and layering clothing?
A: The best layering materials include merino wool, polyester blends, and technical fleece. These fabrics wick moisture, dry quickly, and provide warmth even when wet — unlike cotton, which retains water and can cause heat loss in cold conditions.

Q: Which thermal clothing brands do you carry?
A: Drift Outfitters carries trusted performance brands like Simms, Patagonia, and Hooké. These brands are known for their high-quality technical fabrics, comfort, and durability in demanding fishing and outdoor environments.

Q: How do I layer clothing for cold-weather fishing?
A: Start with a moisture-wicking base layer, add an insulating fleece or mid-layer, and top it off with a waterproof or windproof shell. Proper layering traps heat and manages moisture, keeping you warm without overheating.

Q: How should I care for my thermal and layering clothing?
A: Wash according to manufacturer directions. Air-dry or tumble on low heat to maintain performance and prevent shrinkage. Always follow brand-specific care labels for best results.