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ULTRA Merino 145 Zip-Off Bottom

Our best-selling mid-weight merino wool base layer. Naturally odor resistant.
Front of ULTRA Merino 145 Zip-Off Bottom in Gunmetal Grey

ULTRA Merino 145 Zip-Off Bottom

Features

Best Use: All Conditions

The ULTRA Merino 145 Zip-Off Bottom is a versatile, lightweight base layer with full-length leg zippers that allow for easy on and off without removing your boots.

  • Weight

    6.9 oz / 196 g (L)

  • Protection

    Naturally Odor Resistant, UPF 50+ Rating

  • Material

    Nuyarn Merino- Body: 90% Merino Wool / 10% Nylon

  • Conditions

    Cold

  • 28 in / 71 cm inseam
  • Full-length side zippers for easy off and on
  • Optimized hem height aligns at top of boot (keeps zippers out of boots)
  • Crotch gusset for added comfort and reduced chaffing
  • Functional fly
  • Spandex-free stretch
  • Thermo-regulating
  • Moisture wicking and quick drying
  • Highly breathable
  • Highly resilient
  • Flat lock seams
  • Anatomical shaping for fit and comfort

NEED MORE TIPS?

Demonstration of leg zipper function for zip-off base layer bottom
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Zip-Off Bottoms - Base Layers

Back of Hunter Wearing Ultra Merino 120 LT LS Hoodie in Valo Camouflage Highlighting NuYarn Merino Wool

Do Your Research: Nuyarn® Merino

Learn how patented Nuyarn® Technology captures and maximizes the natural performance of merino wool in our hunting apparel and clothes.

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Overall rating: 4.7560387 / 5 from 828 reviews.

AI Generated Review Summary

ULTRA Merino 145 Zip-Off Bottoms by KUIU, developed in New Zealand, offer exceptional stretch, moisture management, and warmth. Customers praise the zip-off feature, perfect fit, high-quality material, and lightweight design, making them ideal for various outdoor activities and hunting.

Summary topics

  • Zip-Off Feature (5%): It was highlighted by customers that the zip off feature is a game changer and highly recommended.
  • Product Fit (15%): A significant number of customers appreciated the fit of the product, describing it as perfect or great.
  • Product Quality (7%): It was highlighted by customers that the quality of the product is consistently good or great. (Common opinion)
  • Layering Performance (20%): A significant number of customers remarked that the layer is great, perfect, awesome, and amazing.
  • Product Weight (5%): Customers loved the weight of the product, describing it as light, comfortable, and perfect for various outdoor activities.

Review topics: [size, fit, weight, problem, fabric, material, quality, price, feel, performance, design, length, looks, comfort, layer, works, legs, weather, warmth, function, waist, medium, top, pants, velcro, base, heat, value, husband, versatility].

Review highlights

  • "Nice light weight base layer...warm and good fit." — Gerry S.
  • "I have worn these in 20 degree temps and they are a great light weight base layer." — Bud N.
  • "Comfortable light weight and dry quickly awesome base layer" — Brian R.

Reviews

Good product, not perfect for backpacking

"I bought these for backpacking, and probably should have thought about it more prior. They fit very well, their Merino so great for regulating and insulating. I like the ability to remove them without taking off my pants and boots, but the zipper is bulkier than I imagined. Especially the velcro over the zipper at the top the waist, I found to be a bit uncomfortable underneath the waistband of my backpack. Not horrible, but it means I'm probably going to be less likely to use them while backpacking. For other outdoor activities they probably would be perfect."

— James M. (4/5)

Awesome gear can’t wait for

"Awesome gear can’t wait for hunting season"

— Anthony W. (5/5)

I've only tried them on

"I've only tried them on i honestly believe they're exactly what I was wanting. I can't wait to use them this fall"

— Nathan T. (5/5)

Amazing piece of gear

"I wear these everyday at work in the winter. I work in a glass Manufacturing facility and have to work in temperatures ranging from 0 to 140 throughout a single shift. The ability to add or shed a layer quickly without having to take my boots off is great. There are no clean places in a glass factory so these are a game changer. In my old age I need long johns now as the temps drop. I haven't worn them much hunting or hiking I have other long johns I wear. But they would be great. They're lightweight which is great if you're moving around. The only downside to being thin wool is pilling. These do pill. I hope they last a long time. A few small holes here and there isn't a big deal with wool but hopefully they don't wear through. I put a lot of hours in them. I take very gentle care when washing them and they never see the dryer. Hopefully that keeps them in good shape. I wish they still made the synthetic peloton 118 zip off. They would probably be a bit more durable. Also I'm not sure how I feel about them being cut off above the boots. I don't hate it but I usually tuck my long johns into my boots and I can't with these and sometimes they ride up and my legs get a chill there. I think I'd rather just have them full length but I understand because of them having the zip off. These are a must buy if you think quickly adding or removing your base layer is important to your use."

— Levi G. (5/5)

Base layer bottom short

"I thought it would be longer. It leaves a gap between my socks and the bottom of the base layer"

— Bob E. (3/5)

The best concept for added

"The best concept for added warmth on those freezing mornings. When it’s time to remove them, no need to take your boots off. Drop your over garments, unzip the legs and take them off. Very quick and easy. Best product ever"

— Jason F. (5/5)

bought a XL and L.

"bought a XL and L. Roomy mid-thigh to waist, a touch shorter in the calf than expected - but I do realize that is to service the zipped removal. I'll likely love that feature once I go to remove when I have waders on."

— MRF D. (5/5)

Not what I expected

"I thought these were going to fit more like tights and not like pajama bottoms!!! One reason I do not like buying clothes on line. . ."

— Pat L. (3/5)

Joseph C

"I’ve been buying these for years. I love the fit and the hip vents. It’s always my go to!"

— Joseph S. (5/5)

Fantastic!

"Bought 3 of these, they are fantastic. My go to for colder weather."

— Stephen D. (5/5)

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