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
Merino Blend Wool Cotton Combination Underwear, Made in Canada
Product Overview
A thick wool base layer holds warmth but adds bulk under coveralls. A thin synthetic stays comfortable but runs cold by mid-shift. The Stanfield's 8800 Two-Layer Wool Union Suit delivers both. A cotton-poly inner sits soft against skin while a merino-poly outer insulates. The air trapped between them holds body heat and stays light. Anti-microbial treated, full button front, trap door. Made in Canada.
Key Features
- Two-layer construction, trapped-air insulation, lighter than single-layer wool. The inner and outer fabrics are knitted separately with a pocket of still air between them. That air holds body heat the way a double-pane window holds warm air. This two-layer wool union suit delivers warmth at less fabric weight.
- Cotton-poly inner layer, 50/50 blend, soft against skin. The fabric touching your body absorbs sweat, moves it outward, and stays smooth. Buyers who find direct-to-skin wool scratchy wear this two-layer thermal underwear comfortably without a liner underneath.
- Merino-poly outer layer, 50/50 blend, natural temperature regulation. Merino fibre breathes during exertion and insulates during rest. Polyester adds durability to this merino blend union suit and holds its shape through repeated washes.
- Anti-microbial treatment, extended freshness between washes. The treatment slows bacteria growth that causes odour. On multi-day field work or back-to-back shifts, an anti-microbial union suit stays wearable longer before it needs laundering.
- Full button front, trap door with button closure, set-in sleeves with rib cuffs. Buttons open for ventilation; the rear trap door opens for bathroom access without removing the garment or stripping coveralls, bibs, or FR shells. Rib cuffs hold snug at wrist and ankle inside gloves and boots.
- Made in Canada, Truro, Nova Scotia, family-owned since 1856. Every 8800 is knitted in the same mill that produces the heavy weight 1300 and the 80/20 wool separates. This Canadian made thermal base layer carries over 170 years of manufacturing heritage.
Specifications
| Specification | Detail |
|---|---|
| Model | 8800 |
| SKU | 8800-459 (Red), 8800-572 (Charcoal Mix) |
| Garment Type | Union Suit (One-Piece Combination) |
| Construction | Two-layer (separate inner and outer fabrics with air gap) |
| Inner Layer | 50% Cotton / 50% Polyester |
| Outer Layer | 50% Merino Wool / 50% Polyester |
| Overall Composition | 50% Polyester, 25% Cotton, 25% Merino Wool |
| Front Closure | Full button front |
| Rear Access | Trap door with button closure |
| Sleeves | Set-in sleeves with rib cuffs |
| Anti-Microbial | Yes (treated) |
| Colours | Red, Charcoal Mix |
| Sizes | S, M, L, XL, 2XL |
| Country of Origin | Canada (Truro, Nova Scotia) |
| Manufacturer | Stanfield's Ltd. (est. 1856) |
| Care | Machine wash warm. Do not bleach. Tumble dry medium. (See Sizing & Care below for full instructions.) |
Sizing & Care
Sizes run S through 2XL in both colours (Red and Charcoal Mix). No shrink-to-fit process is needed for this wool cotton combination underwear. Order your normal size.
Turn the garment inside out before washing. Machine washes warm with similar colours. Do not use chlorine bleach or fabric softener. Tumble dry on low. Iron on low only if needed. These steps protect the merino outer layer and preserve the anti-microbial treatment.
Prefer separates in the same two-layer fabric? The 8812 Two-Layer Long Johns use the same merino-blend construction in a bottom-only cut, sized S to 3XL.
Applications
- Construction workers layering a two-layer wool union suit under insulated bibs where less bulk means more mobility at the joints
- Warehouse and cold-storage workers on 10-to-12-hour shifts where an anti-microbial union suit extends freshness without mid-shift changes
- Snowmobilers and winter recreation riders who generate body heat during activity and need breathable two-layer thermal underwear that vents during exertion
- Outdoor workers upgrading from cotton thermals to a merino blend union suit with better heat retention and moisture management
- Ice fishers and late-season hunters who want wool cotton combination underwear that sits soft and smooth against skin
Buy Stanfield's Two-Layer Union Suit Online from Cleanflow
Cleanflow Utility Supply Company is an authorized Stanfield's supplier. Every Stanfield's two-layer union suit ships from the manufacturer with tracking across Canada and the United States. Qualifying orders over $199 ship free.
A two-layer wool union suit weighs less than heavy knit wool and holds warmth through trapped-air insulation. The cotton inner, merino outer, and anti-microbial treatment create a Canadian made thermal base layer that handles a full shift, lighter and softer than single-layer wool. For sizing questions, email info@cleanflow.ca.
Browse the full Stanfield's lineup at Cleanflow for long johns, shirts, and every two-layer base layer in the family.
Frequently Asked Questions
What is a two-layer union suit and how does it keep you warm?
A two-layer union suit uses two separate fabrics with an air pocket between them. The trapped air insulates, not the fabric thickness. This is how two-layer thermal underwear works: still air holds body heat the way a double-pane window holds warm air inside a room.
What is the difference between a two-layer and a single-layer union suit?
Insulation method. In a two-layer vs single-layer union suit comparison, the difference is warmth approach. A Stanfield's two-layer union suit uses trapped air between two fabrics. The 1300 Heavy Weight Wool Onesie relies on thick fabric weight. The two-layer is lighter; the single-layer is warmer in extreme cold.
How do you care for a merino blend union suit?
Turn it inside out before washing. Machine washes warm with similar colours and avoids fabric softener and chlorine bleach. Tumble dry on low. The merino blend in this anti-microbial union suit resists odour between washes, so it needs less frequent laundering than cotton or synthetic base layers.
What is the best two-layer base layer for outdoor work in cold weather?
A two-layer wool union suit with a merino outer layer balances warmth, moisture management, and odour control for outdoor work. The 8800 adds anti-microbial treatment and a trap door for practical access. It is a Canadian made thermal base layer knitted in Truro, Nova Scotia.
What is the difference between a merino wool and a pure wool union suit?
Weight and feel. In a merino wool vs pure wool union suit, this Stanfield's two-layer union suit pairs a merino-polyester outer with a cotton-poly inner. The 1300 Heavy Weight Wool Onesie uses 80/20 wool-nylon. Merino blend is lighter and softer; pure wool is heavier and warmer.
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.
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