Optifade Open Country

Merino Core Lightweight Half-Zip

  • Big Game : Open Country
$139.00
(4 Reviews)

The new Merino Lightweight Half-Zip features premium 17.5-micron merino wool spun around a nylon core, creating a high-performance next-to-skin layer that combines the comfort, warmth, moisture management and natural odor control of merino with the durability and elasticity of nylon. With a high heat-to-weight ratio and excellent breathability, the Merino Lightweight Half-Zip excels as a versatile base layer across a broad range of conditions and activity levels.


  • Size:

Product is Performance Fit, designed for minimal layering.

Men's
Sizing Guide

Jacket & Tops Sizing

Size Chest Sleeve
Small 36 - 38" 33"
Medium 39 - 41" 34"
Medium Tall 39 - 41" 36"
Large 42 - 45" 35"
Large Tall 42 - 45" 37"
X-Large 46 - 49" 36"
X-Large Tall 46 - 49" 38"
2XL 50 - 53" 37"
2XL Tall 50 - 53" 39"
3XL 54 - 57" 38"

Pant Sizing (Inches)

Size Waist Reg Tall
30 30" 31"
31 31" 31"
32 32" 31" 33"
33 33" 32" 34"
34 34" 32" 34"
35 35" 32" 34"
36 36" 33" 34.5"
37 37" 33" 34.5"
38 38" 33" 34.5"
40 40" 33"
42 42" 33"
44 44" 33"

Pant Sizing

Size Waist Reg Tall
Small 28 - 30" 31"
Medium 31 - 33" 31" 33"
Large 34 - 37" 32" 34"
X-Large 38 - 41" 32" 34"
2XL 42 - 45" 32" 34"
3XL 46 - 49" 32" 34"

Equinox & Dakota Pant Sizing

Size Waist Reg Tall
30 31" 31"
32 33" 31" 33"
34 35" 32" 34"
36 37" 32" 34"
38 39" 32" 34"
40 41" 32"
42 43" 32"
44 45" 32"

Glove Sizing

Size Palm Circ Length
Medium 8 - 8.5" 7.5 - 8"
Large 9 - 9.5" 8.5 - 9"
X-Large 9.5 - 10" 9 - 9.5"
2XL 10 - 10.5" 9.5 - 10"

Gaiter Sizing

Size Calf Circ Boot Size
M/L 17.5" US 6-10"
L/XL 18.5" US 10-14"

How to Take
Your Measurements

  • 1. SLEEVE MEASURE

    Bend your elbow and put your hand on your hip. Measure from the center of the back of your neck, along the shoulder and down the elbow to the wrist bone.

  • 2. CHEST SIZE

    Take measurement under armpits, around fullest part of chest and shoulder blades.

  • 3. WAIST SIZE

    Measure around where you normally wear your pants, keeping the tape measure a bit loose or putting one finger between your body and the tape measure.

  • 4. INSEAM

    In a standing position,measure from your crotch to where you want your pants to end, breaking at the top of the shoe in the front and just above the heel in the back.

  • 5. GLOVES

    With hand partially closed, measure over the knuckles, around the hand, excluding the thumb.

Fit Guide

SITKA Gear engineers gear with a specific Fit and intended end use in mind. These functional designs provide the user with authentic garments for the right situation.

Fit Descriptions

We can communicate our Fit descriptions in 3 different ways. Keep in mind that each garment will allow for layering in accordance to the garments place in a system and described Fit

  • P/F
  • S/F
  • E/F
  • P/F - PERFORMANCE FIT

    Designed for minimal layering. Whether an early season piece or already insulated this garment fits to prevent inefficiencies in heat retention caused by dead space.

  • S/F - STANDARD FIT

    Designed to accommodate layering for more versatility from early to late season climates.

  • E/F - EXPEDITION FIT

    Designed for maximum layering in the worst conditions. Cut roomier to accommodate additional layering underneath.

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FEATURES & SPECS

  • GORE™ OPTIFADE™ Concealment Open Country is scientifically optimized for engagement ranges of 50 yards and beyond at ground level in rocky terrain above the timber line.

  • Weight: 5.8 oz. // Size: L

  • Fabric: 85% 120-Gram 17.5 Micron Merino / 15% Nylon Core-Spun Blend.

Same Product, other uses

Product Comments

4 Reviews
Write a Comment
OR Elk Hunter
Reviewed On 12/07/2019

Great base layer or shirt for warmer weather. Super soft and VERY comfortable. I accidentally ran this through the dryer and it didn’t shrink! But, I do wish the length was a little longer in the torso. I find myself “tucking” more than I would like. Four and 1/2 stars for this reason.

Mitchell Clifton
Reviewed On 12/10/2018

I paired it with the light merino wool bottoms and was very pleased. Weight to warmth is amazing.

WA State Hunter
Reviewed On 10/12/2018

Great product!! I was skeptical of all the hype about merino wool... but it is all true. These were extremely lightweight, but did a great job with maintaining body temperatures. Used during September early archery elk hunt. Did 6 days strait of hunting/hiking. Temperatures ranged from 30-70 and we hiked anywhere from 10-20 miles daily with about 3k elevation changes. I was never uncomfortable, wore either the ascent shirt, apex hoodie, and sometimes the kelvin light down jacket (no longer being made) with it depending on how the temperatures were looking. Even more impressive to me was that the base layers really did not smell at all. Im sold on it, will highly recommend to everyone. I hope Sitka will continue to produce more merino wool products, such as a t-shirt and more mid layers.

Charles
Reviewed On 09/04/2018

I think Sitka is really onto something with the Nylon/Wool combo. The quick drying property of nylon and the odor resistant property of wool work really well together. BUT no thumbholes for a $140 baselayer?

SITKA Gear - 07.26.2017

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