Optifade Open Country
Optifade Open Country
Big Game: Open Terrain

Merino Core Lightweight Bottom  


The new Merino Lightweight Bottom features premium 17.5-micron merino wool spun around a nylon core, which produces 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 Bottom excels as a versatile base layer across a broad range of conditions and activity levels.

Open Terrain
Spot & Stalk
Mild, Cool, Cold
Optifade Open Country
Other scenarios for the Merino Core Lightweight Bottom
  • Size:

85% 120-gram 17.5 Micron Merino / 15% Nylon Core-Spun Blend for natural odor resistance and durability. 

Product Care 

Merino wool is a delicate fiber and requires more attention than a synthetic garment.

It is safe to machine wash Merino Wool under a gentle cycle with cold water. Wash with other Merino Wool products of like colors. Do not use bleach or fabric softeners and do not dry-clean.

Tumble dry on low heat or lay flat to dry. MERINO WOOL WILL SHRINK if not cared for properly.  

Visit Care Guide
Product Comments
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Jeff D. | 02. 25. 19
Ultra-light, amazing warming and cooling properties, unresticting and incredible odor control. These are always on the packing list for my hunts. While I tend not to wear the bottoms in higher temp early season elk hunts, they quickly replace my Sitka merino boxers as a base layer for the late season hunts in the rain and snow.
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Mitchell Clifton | 12. 10. 18
Unmatched weight to warmth ratio, wore weekend trip drizzling rain mid 30s slight wind and stayed warm and dry. My first merino product and won't be my last.
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WA State Hunter | 10. 12. 18
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 pant or the apex pant 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.
Star Star Star Star
Ethan Hoggard | 07. 23. 18
Can't believe how lightweight these are! I literally thought the package was empty when they arrived.
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