Yes. For a guide company, expedition operator, ski school, trekking outfitter, or other organization putting people in merino layers hard and repeatedly, I’d look beyond ordinary wholesale outdoor retailers and prioritize manufacturers that can support large repeat orders, consistent sizing, logo customization, durability, and documented wool/fabric standards.
Best manufacturers/suppliers to investigate
Supplier
Best fit
Bulk/B2B capability
Why I'd consider them
Woolpower
Expedition, guides, cold-weather professional use
Strong
Swedish-made; originally developed base/mid-layers for the Swedish Army and now supplies people working in extreme cold. They explicitly invite reseller partnerships.
Particularly interesting because Aclima sells directly into professional workwear and public-sector contracts, while manufacturing functional merino garments.
Devold / Devold Protection
Heavy-duty professional/outdoor use
Excellent
Has certified merino protective/workwear products, European production, and a dedicated professional partner program.
Brynje
Guides, mountaineering, expedition
Strong
Long-standing technical outdoor manufacturer; offers embroidery/printing of company and expedition logos on most garments.
Minus33
North American guide/outfitter programs
Very good
Has an explicit wholesale program, broad merino range from lightweight through 380–400 g/m² heavyweight, RWS/Woolmark/OEKO-TEX credentials, and a U.S. customer/warehouse operation.
HICON
Custom/private-label outdoor programs
Strong
Makes merino base layers plus socks and other technical accessories through certified partner factories; particularly useful if you want a coordinated outfitter uniform.
BASE//LAYER / Halis Yün Tekstil
Private-label bulk production
Very strong
Istanbul manufacturer offering 17.5–19.5µ merino and blends from 120–260 GSM, private label/OEM/ODM, with a stated 300-piece/style minimum.
Wildlander Outdoor
Custom branded merino apparel
Strong
OEM/ODM manufacturer with outdoor focus, fabric sourcing and bulk production; lists merino fabrics from 15.5–21.5µ and multiple merino/nylon/polyester constructions.
SANSANSUN
Cost-conscious custom/private label
Strong
Dedicated base-layer manufacturer offering merino, merino blends, OEM/ODM and private label, with claimed high-volume capacity.
My shortlist for a guide company
I'd divide them into three categories:
1. Buy an established, proven garment rather than develop your own
My first calls would be Woolpower, Aclima, Devold Protection, Brynje and Minus33.
These are much more compelling for guides because you're buying an already-developed technical garment rather than taking on the risk of developing a factory-direct product. Woolpower in particular has a very strong "professional user in extreme cold" pedigree.
2. Put your own company branding on an established product
Brynje stands out because it explicitly offers embroidery/printing for company and expedition logos.
Minus33 is also attractive in the U.S. because it has a formal wholesale/dealer infrastructure and substantial range of weights.
3. Manufacture your own guide-company base layer
If you're talking about hundreds or thousands of units per year, I'd investigate BASE//LAYER, Wildlander and SANSANSUN. You can specify the fabric, GSM, fit, seams, colors, labels and packaging rather than simply buying a retail SKU. BASE//LAYER, for example, publishes a 300-piece/style MOQ and 120–260 GSM merino range.
One important distinction: "merino" isn't enough
For heavy outdoor use, I'd put a fairly specific specification into the RFQ:
17.5–19.5 micron merino
180–250 GSM for the general-purpose guide layer
250–300+ GSM for cold-weather/heavyweight use
Reinforced or high-durability construction at shoulders/underarms
Flatlock or otherwise low-profile seams
Long enough torso and sleeves for climbing/harness use
Men's and women's patterns
XS–3XL/4XL availability
Machine washable
RWS or equivalent wool sourcing documentation
Woolmark certification where applicable
Colorfastness/pilling/shrinkage testing
Ability to reorder the same fabric and pattern several years later
Company logo application that survives repeated commercial laundering
I'd also consider merino/nylon blends rather than automatically specifying 100% merino. A 80/20 or similar construction can make sense for guides who wear the garment continuously under packs and harnesses, because abrasion and dimensional stability become much more important than they are for a recreational customer.
Particularly interesting heavyweight options
If by "heavy outdoor use" you mean winter mountain guides, dogsled operators, Arctic work, ski patrol, etc., the heavyweight category deserves attention. Minus33, for example, offers 380–400 GSM heavyweight merino, while Woolpower uses its distinctive terry-loop construction rather than simply making a thicker jersey.
For comparison, commercially available heavyweight products include Meriwool's 400 g/m² merino layer:
But I wouldn't use retail product availability as the basis for a guide-company purchase; the B2B agreement, reorderability and durability testing are much more important.
If you tell me roughly how many units you need per year (e.g. 100, 500, 2,000, 10,000+) and whether you want 100% merino or are open to merino/nylon blends, I can narrow this to ~5 suppliers and compare their MOQs, GSM/micron options, customization, country of manufacture, certifications, and likely price tier.
Sourcing bulk merino wool base layers for guide companies, search-and-rescue teams, or heavy industrial outdoor use generally falls into two categories: established retail brands with professional/corporate discount programs (Pro Deals) or OEM/ODM factory-direct manufacturers for custom-branded staff gear.
The primary options and avenues for outfitting an outdoor team with heavy-duty merino wool base layers include:
Icebreaker Pro Programme: Icebreaker provides robust, high-density merino wool layers well-suited for harsh alpine and expedition climates. Verified outdoor professionals and guides can apply through the Icebreaker Pro Programme to outfit teams at discounted tier pricing.[](https://na.icebreaker.com/en-us/pages/pro-deal-member)
HD Merino (OEM/ODM Manufacturers): If you are looking to manufacture custom-logo or private-label bulk inventory specifically for a large commercial guide operation, specialized bulk manufacturers like HD Merino cater directly to wholesale, custom micron counts (e.g., ultra-fine 17.5-micron performance tees and heavy thermal knits), and bulk private labeling.
Alibaba Industrial/OEM Suppliers: For budget-conscious outfitting or large-scale staff uniform runs with custom logos, numerous verified factories specialize in technical outdoor 100% merino wool base layers with low-to-medium minimum order quantities (MOQs) via platforms like Alibaba Wholesale Merino Gear.[1][2]
If you can share:
How many units you need
Whether you need custom corporate logos/branding or standard retail gear
Your preferred wool weight (e.g., lightweight 150g vs. expedition-weight 260g+)
I can help you narrow down whether a Pro Deal retail account or a factory-direct OEM supplier makes the most financial sense.
For ski schools, guides, lift operations, and other outdoor staff, I’d prioritize vendors that can handle repeat/group orders, consistent sizing/colors, and customization—not just retail-quality merino.
Vendors worth approaching
Icebreaker — Particularly attractive for a professional ski-school uniform program. Icebreaker has a dedicated corporate/group sales program, including custom embroidery and branding, and its snow range includes 100% merino base layers.
Woolpower — A particularly work-oriented option. Woolpower makes base and mid-layers specifically for people working in cold environments, including military and utility workers. Its garments are manufactured in Sweden, with a strong emphasis on durability and long-term use.
Smartwool — A strong mainstream choice if you want easy U.S. sourcing and a broad range of weights. Its Classic Thermal Merino is 100% merino; its Core Spun/All-Season products incorporate nylon for increased durability.
Helly Hansen — Worth considering if the uniform needs to bridge skiing and workwear. Its LIFA Merino line combines merino with a synthetic layer, while its Workwear range includes dedicated LIFA Merino base layers.
How I'd narrow it down
Requirement
Vendors to investigate
Custom logo/branding + established corporate program
Icebreaker
Heavy-duty cold-weather staff use
Woolpower
Easy U.S. procurement / broad sizing
Smartwool
Ski + occupational/workwear crossover
Helly Hansen
For staff who are skiing/teaching all day, I'd generally look at 150–200 g/m² for high-output staff and 250 g/m² for colder, less active positions. A nylon/merino blend can also make sense for uniforms because it trades a little natural-fiber purity for improved abrasion resistance and longevity.
If you're buying 50–500+ sets, I would contact the corporate/group sales teams rather than purchasing retail quantities. Icebreaker explicitly offers this route, while Woolpower also invites reseller/partner relationships.
If you tell me roughly how many employees, your budget per top/bottom, and whether you need custom logos, I can narrow this to 3–5 suppliers and compare bulk pricing, minimum orders, customization, fabric weight, and U.S. availability.
When outfitting a team, outdoor departments typically look for high durability blends (such as core-spun nylon wrapped in merino), consistent sizing, and industry professional discount programs.
Top Vendors for Professional Merino Base Layers
100% merino specifically
Icebreaker, Smartwool, Woolpower
Maximum durability
Woolpower; Smartwool Core Spun
Vendor
Key Advantage
Price Range
Pro/Bulk Program Availability
Smartwool
Industry standard, wide variety of weights (150–250g), excellent durability.
$90 – $140
Offers an Industry Pro Deal Program for qualifying ski instructors and outdoor workers.
Icebreaker
Highly refined, odor-resistant pure and corespun merino; sleek uniform aesthetic.
$95 – $150
Has robust professional/industry partner discount tiers for outdoor staff.
Ibex
Uses advanced Nuyarn merino technology for superior elasticity and fast drying.
$110 – $145
Offers pro-form application access for ski and mountain resort professionals.
Ridge Merino
Built specifically by/for mountain professionals and ski patrollers with high value.
$75 – $115
Known for direct group/staff coordination and accommodating resort team needs.
Key Considerations for Uniform Base Layers
Durability (Corespun/Nuyarn Tech): 100% pure merino is soft, but outdoor staff working 100+ days a season benefit from nylon-core blends (like Ibex Woolies Pro or Smartwool Classic/Intraknit) that resist elbow/shoulder wear under heavy backpacks and outer layers.
Fabric Weight:Midweight (175g–200g) options provide the best versatility for shifting weather conditions, keeping instructors warm during static lift lines and breathing well during active runs.[](https://www.outdoorgearlab.com/best-base-layer)
Odor Resistance: Natural antimicrobial properties of merino mean staff can wear them multi-day between washes—a major plus for employees living out of ski lockers or staff housing.
If you'd like, let me know:
Your approximate staff size
Whether you are looking for an individual pro-form discount or a centralized corporate/bulk invoice order
I can help you pinpoint the best direct contact path for these brands.
