GeneralSolarwoolSold by Skre Gear

Solarwool

Kaibab 300 Merino Wool Bottom - Full length Zipper

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Universal Core

Insulation layer designed to be

300 Gsm

Insulation for mid-heavy weight base-layer

Superfine 19.5

5% spandex for multi-directional stretch

Full-length Zippers

Allow easier removal without taking

Flat Lock

Seams help prevent chafing during

$129.99
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SKU: kaibab-300-bottom

Overview

Built as a mid-heavy weight base layer, this bottom is intended for hunters who need dependable core insulation when temperatures drop. It uses superfine merino wool and is designed to be worn next to the skin, with multi-directional stretch and flat lock seams for a more comfortable fit under outer layers. The full-length zippers add practical convenience when changing without removing boots, making it well suited for cold-weather setups and long days in the field. Its merino construction also supports moisture management and odor control, though it is still a substantial layer rather than a lightweight option.

Why Hunters Choose the Solarwool

300 Gsm

Merino wool provides substantial core

Designed Be

Worn against the skin as

Full-length Zipper

Allows easy removal without taking

Multi-directional Stretch

Supports comfortable movement during active

Flat Lock

Seams help reduce chafing during

Key Features

  • Universal core insulation layer designed to be layered against the skin.
  • 300 GSM insulation for mid-heavy weight base-layer use.
  • Superfine 19.5 micron merino wool with 5% spandex for multi-directional stretch.
  • Full-length zippers allow easier removal without taking off boots.
  • Flat lock seams help prevent chafing during wear.
  • Naturally antimicrobial merino wool supports odor control.
  • Recommended for mid-heavy weight base-layer applications.

Best Used For

  • Hunters needing a mid-heavy base layer for cold-weather layering systems
  • Users who want easy boot-on, boot-off removal without fully undressing
  • Backcountry hunters prioritizing moisture management during active movement
  • Those seeking a full-length zipper bottom for quicker temperature adjustments
  • Serious outdoorsmen wanting merino next-to-skin comfort with stretch

Specifications

ClosureFull Length Zippers
Fabric Details19.5 Micron Superfine Merino Wool
Fire ResistanceNaturally Fire & Stain Resistant
Insulation300 GSM
Material95% Merino Wool, 5% Spandex
Moisture ManagementExcellent Moisture Management
Odor ControlNaturally Antimicrobial
Recommended UseMid-Heavy Weight Base Layer
SeamsFlat Lock Seams
StretchMulti-Directional Stretch
Uv ProtectionNaturally UV Absorbent
Weight1 lb 2 oz

Pros

  • 300 GSM Merino wool provides substantial core insulation for mid-heavy weight layering.
  • Designed to be worn against the skin as a universal base layer.
  • Full-length zipper allows easy removal without taking off boots.
  • Multi-directional stretch supports comfortable movement during active use.
  • Flat lock seams help reduce chafing during long wear.
  • Merino wool construction offers excellent moisture management and odor control.

Considerations & Trade-offs

  • At 300 GSM, this is a mid-heavy weight base layer, so it is better suited to colder conditions than to warm-weather use.
  • The full-length zipper adds convenience for removal over boots, but it also adds hardware and complexity compared with a simpler pull-on bottom.
  • Merino wool is designed to be worn against the skin, but the product is still a wool-based layer and may not suit hunters who prefer synthetic next-to-skin fabrics.
  • The listed weight is 1 lb 2 oz, which may be a consideration for those trying to keep their layering system as light as possible.

Suggested Comparisons

  • Base layer bottoms
  • Merino wool thermal underwear
  • Mid-heavy weight insulation layers
  • Cold-weather hunting apparel

Suggested Accessories

  • Merino wool base layer top
  • Insulated hunting pants
  • Mid-layer insulation pants
  • Base layer socks

Frequently Asked Questions

What type of layer is the Kaibab 300 Merino Wool Bottom intended to be used as?

It is designed as a universal core insulation layer and is recommended as a mid-heavy weight base layer.

Does the Kaibab 300 bottom have a full-length zipper?

Yes. The product features full-length zippers, which make it easier to remove without taking off your boots.

What is the fabric content of the Kaibab 300 bottom?

The listed fabric details are 95% Merino wool and 5% spandex, using 19.5 micron superfine Merino wool.

What comfort or moisture-management features are listed for this base layer?

The product lists excellent moisture management, wicking moisture away from your body, flat lock seams to help prevent chafing, and multi-directional stretch.

Are there any odor or UV-related features mentioned?

Yes. The product states that Merino wool is naturally antimicrobial for odor control and naturally UV absorbent to help eliminate unnatural glare.