Simms Heavyweight Baselayer Bottom Black XL
These heavyweight fleece baselayer bottoms from Simms deliver essential warmth and moisture management for long days pursuing Great Lakes steelhead in cold conditions. The stretch micro-grid fleece construction provides excellent mobility for casting and wading while the anti-odor technology keeps you fresh during multi-day fishing trips. Perfect as a base layer under waders or worn alone during milder weather.
19 of 31 Alley rivers fishing well right now.
Common Questions
What kind of fishing is the Simms Heavyweight Baselayer Bottom Black XL used for?
Simms's apparel is set up for spey & two-hand, nymphing, and float fishing targeting steelhead, trout, salmon. Each technique has a dedicated guide on Steelhead Addiction with rigging walkthroughs and water-reading tips.
What fish species does the Simms Heavyweight Baselayer Bottom Black XL work for?
This apparel is curated for steelhead, trout, salmon. The Steelhead Addiction species field guide has biology and Great Lakes-specific tactics for steelhead and the rest.
Where do I buy the Simms Heavyweight Baselayer Bottom Black XL?
This product is fulfilled by Amazon — currently $89.95. SteelHead Addiction does not handle inventory, payments, or shipping; Amazon does. We curate the gear and pair it with live conditions context. Click "Buy on Amazon" to complete the purchase.
Are conditions good for fishing the Steelhead Alley right now?
19 of 31 Alley rivers fishing well right now. Live updates for all 31 rivers run every 15 minutes — see the full dashboard on Steelhead Addiction.
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Key Specs
Features
- + 100% Fleece
- + Made in the USA
- + MEN’S HEAVYWEIGHT BASELAYER BOTTOM: SIMMS Heavyweight Baselayer Bottoms are powered by stretch micro-grid fleece for optimum mobility, warmth and moisture wicking comfort. Perfect for next to skin wear or over a lightweight baselayer.
- + MOISTURE WICKING, QUICK DRY BOTTOMS: Stay cool and dry all day long with these moisture-wicking bottoms. If you are splashed by a rogue wave or are caught in a rainstorm, these bottoms also have quick-dry features.
- + ANTI-ODOR TECHNOLOGY: This bottom is finished with anti-odor technology to help control odors caused by a wide range of microorganisms (mold, mildew, algae, yeast, B.O.).
- + LAYERING FISHING BOTTOMS: Wear these long bottoms as your first layer when fishing on cold days. They feature 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.
- + TRUSTED SIMMS WARRANTY: If your SIMMS product fails due to a defect in workmanship or materials, SIMMS will repair or replace your gear and get you back on the water as soon as possible. If your SIMMS product fails due to excessive wear, accidents and breakdown of materials over extended time, SIMMS will make every effort to repair your gear for a reasonable fee.
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