Within Canada: This product ships directly from the manufacturer. Most orders ship within 2–3 business
days, although please allow up to one week for dispatch. Tracking information will be emailed once your order
ships.
To the USA: U.S. orders are transferred from the manufacturer to our main fulfillment warehouse, where
final U.S. shipping is handled by our team. This may add one to two additional weeks before dispatch. Tracking
information will be emailed once your order ships.
For hygienic purposes, please note that thermal undergarments are a final sale, and are not eligible for exchange or return.
Description
Pure Merino Wool Bottom: 100% New Zealand Fibre from Waist to Ankle
Product Overview
Layered work pants, insulated bibs, and boot gaiters trap lower-body sweat with fewer ventilation points than the upper body. Cotton absorbs that moisture and holds it; merino moves it. Stanfield's Puer Merino Wool Long Johns (8312) are a pure merino wool bottom made from 100% New Zealand merino. Jersey knit fibre wicks moisture without holding it, keeping legs dry through a full shift.
Key Features and Benefits
- Full-length 100% merino wool long johns, two-needle hem. No cotton filler, no polyester blending. These are 100% merino wool long johns with a full-length leg from waistband to a reinforced two-needle hem at the ankle.
- New Zealand merino jersey knit, smooth lay under work pants. This pure merino wool bottom uses New Zealand merino yarns in a jersey knit. The smooth surface sits flat under work pants, bibs, and field trousers without bunching.
- Moisture wicking without feeling wet against skin. Merino fibre wicks moisture to the surface where it evaporates rather than trapping it against the body the way cotton does. Merino wool base layer bottoms keep legs drier than cotton alternatives during physical work.
- Naturally odour resistant across multi-day wear. The fibre resists odour-causing bacteria without chemical treatment. One pair handles multiple shifts between washes without developing the smell that synthetic long johns build up after a single wear.
- Naturally flame retardant, stain resistant, anti-wrinkle. These properties are inherent to the merino fibre structure, not applied treatments that wash out over time. The wool chars rather than melts on contact with heat.
- Made in Truro, Nova Scotia, sizes S through XL. These Canadian made merino long johns come from a single mill producing wool garments since 1856. Pair with the 8313 merino wool shirt for full-body 100% merino coverage.
Most merino base layer bottoms on the market are blends, not pure fibre. Imported alternatives that do use 100% merino carry higher price points. For buyers seeking a mens pure merino wool bottom sale option that is genuinely 100% merino and Canadian-made, the 8312 fills that gap.
Specifications
| Specification | Detail |
|---|---|
| Model | 8312 |
| SKU | 8312-552 (Black) |
| Garment Type | Full-Length Long Johns (Base Layer Bottom) |
| Fabric | 100% Merino Wool |
| Yarn Origin | New Zealand |
| Construction | Single-layer jersey knit |
| Leg | Full-length with two-needle hem |
| Colour | Black |
| Sizes | S, M, L, XL |
| Natural Fibre Properties | Moisture wicking, odour resistant, breathable, temperature regulating, naturally flame retardant, stain resistant, anti-wrinkle (inherent to merino wool fibre; manufacturer-confirmed) |
| Care | Machine wash cool. Do not bleach. Tumble dry medium. |
| Country of Origin | Canada (Truro, Nova Scotia) |
| Manufacturer | Stanfield's Ltd. (est. 1856) |
Sizing and Care
To select the correct size men's pure merino wool bottom, measure the natural waist at the navel and match to the chart below.
| Size | Waist |
|---|---|
| S | 28–30" |
| M | 32–34" |
| L | 36–38" |
| XL | 40–42" |
In the merino wool long johns vs two-layer long johns comparison, the 8312 delivers odour resistance and 100% merino fibre performance. The 8812 Two-Layer Long Johns deliver trapped-air insulation with a merino-poly outer and sizes to 3XL. For full-body 100% merino coverage, pair the 8312 with the 8313 merino wool shirt.
The key to how to wash merino wool underwear: avoid fabric softener and bleach. Softener coats the fibre and reduces moisture-wicking ability. The merino maintains its natural odour resistance through dozens of wash cycles without it.
Care: Machine wash cool. Do not bleach. Tumble dry medium.
Applications
- Forestry and pipeline crews: 100% merino wool long johns under insulated bibs for multi-day winter shifts in remote camps.
- Hunters and backcountry hikers: a pure merino wool bottom under field pants for odour-resistant multi-day backcountry trips.
- Construction workers: merino wool base layer bottoms for warmth that handles sweat under heavy work pants and coveralls.
- Cold-storage and warehouse workers: a pure merino wool bottom under uniforms for temperature regulation across shift changes.
- Ice fishers and snowmobilers: Canadian made merino long johns paired with the 8313 shirt for full-body natural fibre coverage.
Buy Stanfield's Merino Wool Long Johns Online from Cleanflow
Cleanflow Utility Supply Company stocks Stanfield's merino wool long johns for direct shipment across Canada and the USA. Orders over $199 ship free.
Cleanflow's mens pure merino wool bottom sale features the 8312 in Black, sizes S through XL. Each pure merino wool bottom ships directly from the manufacturer with tracking.
For questions about the right size men's pure merino wool bottom for your build, or to confirm availability, email info@cleanflow.ca. Browse the full Stanfield's lineup at Cleanflow for base layers, long johns, and every wool garment in the family.
Frequently Asked Questions
Are 100% merino wool long johns worth it?
Yes. 100% merino wool long johns resist odour across multiple wears, retain warmth when damp, and regulate temperature in both directions. Cost per wear drops over time because the fibre needs fewer washes than cotton or synthetic alternatives, which extends garment life.
What is the difference between merino wool and synthetic long johns?
Merino wool resists odour naturally and retains warmth when wet. Synthetic fabrics dry faster and cost less. For workers who wear the same pair across multiple shifts, merino wool base layer bottoms outperform synthetics because bacteria cannot feed on the fibre the way they do on polyester.
What is the best mens pure merino wool bottom?
Look for 100% merino content, New Zealand yarn sourcing, and Canadian manufacturing. Stanfield's merino wool long johns meet all three. The most-reviewed competitor, Smartwool's Classic Thermal bottom, uses an 88% merino and 12% nylon blend rather than pure merino fibre.
How to wash merino wool underwear?
Machine wash cool. Do not bleach. Tumble dry medium. Avoid fabric softener, which coats merino fibres and reduces their moisture-wicking ability. Knowing how to wash merino wool underwear correctly is straightforward: skip the softener and bleach, and the wool holds its odour resistance through dozens of cycles.
What is the difference between merino wool long johns and two-layer long johns?
Merino wool long johns use 100% merino in a single layer for moisture management. Two-layer long johns like the Stanfield's 8812 pair a cotton-poly inner with a merino-poly outer and trapped air. The merino wool long johns vs two-layer long johns choice: merino for odour control, two-layer for insulated warmth.
Within Canada: This product ships directly from the manufacturer. Most orders ship within 2–3 business
days, although please allow up to one week for dispatch. Tracking information will be emailed once your order
ships.
To the USA: U.S. orders are transferred from the manufacturer to our main fulfillment warehouse, where
final U.S. shipping is handled by our team. This may add one to two additional weeks before dispatch. Tracking
information will be emailed once your order ships.
For hygienic purposes, please note that thermal undergarments are a final sale, and are not eligible for exchange or return.
Similar Products
Featured collection
