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 - Heavyweight Baselayer Bottom - 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 Heavyweight Baselayer Bottom – Black – Maximum warmth and mobility for cold days.

The Simms Heavyweight Baselayer Bottom in Black is built to keep you warm, dry, and moving freely through the coldest fishing conditions. Constructed with stretch micro-grid fleece, this baselayer provides excellent heat retention while efficiently wicking away moisture to keep you comfortable during long days on the water. Its ergonomic design offers full mobility without bulk, making it the perfect foundation layer under waders or outerwear. Durable, warm, and performance-driven, the Heavyweight Baselayer Bottom is essential gear for anglers who refuse to let winter cut their season short. Shop online or visit Drift Outfitters in Toronto for expert advice and fast shipping anywhere in Canada.

Smooth jacquard face with grid-fleece backside adds stretch and micro pockets to trap heat and wick away moisture
Flat elastic waistband and fly pouch designed with minimal seams for a chafe-free, next to skin comfort
Stretch panels strategically designed from lower calf to ankle cuffs allow for easy integration when worn with socks and paired with waders or bibs and boots.

FABRIC TECH: Body - 190 gsm 96% polyester, 4% elastane micro grid fleece finished with antimicrobial + moisture management; Lower Legs - 88% polyester, 12% elastic

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.