REEL MERINO 145 Zip Off Thermal Pant in Charcoal, front angle showing the full-length leg zip
REEL MERINO 145 Zip Off Thermal Pant in Charcoal, back view
Close-up of the side leg zip opened at the waistband on the REEL MERINO 145 Zip Off Thermal Pant
Close-up of the closed side leg zip and waist tab on the REEL MERINO 145 Zip Off Thermal Pant

REEL COAST GEAR - Base Layer

REEL MERINO 145 Zip Off Thermal Pant

$109.00

Warmth you can shed without taking off your boots. A 145 Nuyarn® merino thermal with full-length YKK® leg zippers, so you can layer up when it turns cold or vent to cool off mid-day — fast-drying, odor-resistant, and stretchy without spandex.

Color
Color: Charcoal
Color
Color: Charcoal
Size
Size: M

REEL MERINO 145 Zip Off Thermal Pant — Size Guide

REEL MERINO 145 Zip Off Thermal Pant size guide
Features
  • Full-length zippers for easy on-and-off without removing boots.
  • Powered by Nuyarn®: 5x faster drying and 8.8x more durable than conventional merino.
  • Naturally odor-resistant and antimicrobial for multi-day wear.
  • Ultra-fine 17.5-micron merino wool for itch-free comfort.
  • Lightweight and packable for versatile layering.
The Full Story

Cold legs end days early, so this thermal is built to keep them out of the equation. The heavier 145 g/m² Nuyarn® merino (90% merino / 10% nylon) delivers real warmth while staying breathable and fast-drying, and the full-length YKK® leg zippers let you add or shed it over an above-the-calf cut without ever pulling off your boots. A functional fly, Velcro-reinforced elastic waistband, and flat-lock seams round out an anatomic athletic fit. Spandex-free stretch means it moves with you and layers under outer pants without binding — the bottom half of a proper cold-weather system at just 7.2 oz.

Specifications
  • Layering Position: Base Layer / Thermal
  • Best Conditions: Cool to Freezing Weather
  • Weight: 8.25 oz / 234 g
  • Material: Nuyarn® Merino 145 g/m² (88% Merino Wool / 12% Nylon)
  • Fiber Thickness: 17.5 micron
  • Sun Protection: UPF 50+ Rating
  • Odor Protection: Naturally Odor-Resistant and Antimicrobial

Layer with
The fabric, up close

Why this doesn't feel – or behave – like normal wool

Twist-free Nuyarn® spin

Twist-free spun instead of being twisted tight, so the wool keeps its natural loft and traps warmth without the weight.

17.5-micron merino

Ultra-fine fibers sit below the itch threshold. Next-to-skin comfort with none of the scratch people expect from wool.

Open, breathable structure

The relaxed yarn moves moisture out fast and dries roughly 5x quicker than conventional merino, so you stay dry through the run-and-gun.

Up to 8.8x more durable

The loft-preserving spin makes the yarn dramatically more durable than conventional merino, so a base layer survives seasons, not weeks.

35% natural stretch & recovery

Mechanical stretch built into the yarn, with no elastane, for a layer that moves with you and springs back into shape.

Full-Length Zippers

Easily layer or remove without taking off boots or bibs.

Durable Nuyarn® Technology

8.8x more durable and 5x faster drying than conventional merino.

All-Day Comfort

Soft, itch-free fabric with natural odor resistance for extended wear.

Why we built this

Made by two guys who actually fish.

We got tired of gear that quit before the day did — base layers that stank by noon, shells that soaked through, "performance" that was mostly marketing. So we built our own, tested it on the water we love, and give 5% of proceeds back to protecting it. If it doesn't survive our worst days on the water, it doesn't get our name.

The Details

Specifications

Fabric
Nuyarn® twist-free spun merino jersey
Fiber
100% RWS-certified merino wool
Fiber Diameter
17.5 micron (ultra-fine, non-itch)
Weight Class
120 g/m² — lightweight base layer
Stretch
~35% mechanical stretch, no elastane

Built Right, Backed Right.

Nuyarn®

Twist-free spun instead of twisted — the process that makes REEL Merino dry faster, last longer, and holds its natural loft.

Explore Nuyarn®

RWS — Responsible Wool Standard

Certified, traceable, non-mulesed wool. Comfort you don't have to feel conflicted about.

About RWS

The Five Whole Foundation

5% of proceeds goes to protecting sustainable fisheries and the waters we all fish. Every layer helps.

Meet the Foundation