Optifade Open Country

Merino Core Lightweight Half-Zip

  • Big Game : Open Country
$139.00
(7 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.

    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.

    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.

    Back to Shopping
    Performance Fit

    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. 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 - 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.

    Back to Shopping

    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.

    Product Comments

    7 Reviews
    Write a Comment
    John Abernathey
    Reviewed On 07/17/2020

    I almost love this shirt, but they are about 3" too short. I'm 6ft tall so fairly average. I have owned merino hunting shirts in the past so I am aware of not drying merino due to shrinking, so I hang dry all my merino camo, but this shirt is frustratingly short. Hoping Sitka fixes this asap! I would totally buy some more once they get the length fixed.

    Phil
    Reviewed On 05/21/2020

    Very comfortable with a great fit. Less shiny than the synthetic base layers. You would likely do as well with the synthetic Core lightweight shirt for better durability and lower price. I'm not sure if the value is there with the merino shirt but it slightly nicer overall.

    Corey
    Reviewed On 01/19/2020

    Light weight merino half zip I can't wait to put to the test throughout archery season. Plan on purchasing a second one soon. Sizing advice: I'm 5'11" 170 lbs, athletic build, wear a medium in almost everything including my black ovis merino T's and half zip, and I'm definitely glad I went with a LARGE in this shirt or I would likely be rocking a belly shirt come hunting season. As a large, it's still not baggy and I'll be able to tuck it in.

    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?

    1 of 2
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