Ambient Hoody in SITKA Black
Ambient Hoody in SITKA Black
Ambient Hoody in SITKA Black
Ambient Hoody in SITKA Black
Ambient Hoody in SITKA Black
Ambient Hoody in SITKA Black
Ambient Hoody in SITKA Black
Ambient Hoody in SITKA Black
Ambient Hoody in SITKA Black
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Ambient Hoody

  • Hunt Solids : SITKA Black
(12 Reviews)

The Ambient Hoody is everything we like in a mid-layer insulation piece — versatile, packable and durable, but adapts to changing weather conditions and levels of activity. Utilizing low-bulk PrimaLoft® Evolve active insulation, this half-zip pullover hoody delivers plenty of warmth when you’re still, breathes well and manages moisture in active situations and dries quickly if it gets wet. This technical hoody is ideal under a shell during cold weather hunts, on its own during brisk spring and fall evenings in camp, or tossed into your pack for summertime backpacking trips into the high country.

Product ID: #600042

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"

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


    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.


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


    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

    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.


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


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

Back to Shopping
  • 20D ripstop nylon fabric is built to take a beating

  • 4-way stretch nylon panels allow plenty of mobility

  • 100 grams post-consumer recycled PrimaLoft® Evolve active insulation for breathable low-bulk warmth

  • Mechanical stretch enables a wide range of motion

  • Sculpted hood won’t obscure peripheral vision

  • Durable water repellent finish sheds moisture and keeps fabric from wetting out

  • Half-zip pullover design for comfort and easy layering

  • Total weight: 13 oz.

Moisture Wicking
Product is Standard Fit, designed to be layered for versatility.



Why We Made This

Our goal was to create a layer that worked harder and performed smarter. The answer was in partnering with PrimaLoft® Evolve for the most active insulation on the market. Active insulation’s biggest benefit is its ability to adapt—it traps heat while you’re sitting, and breathes more efficiently than static insulation while you’re on the move. The Ambient jacket or hoody will increase the performance of your clothing system for any pursuit functioning as a mid or outer layer depending on the need.

Product Comments

12 Reviews
Write a Comment
Reviewed On 09/30/2022

I have multiple clothing systems from Sitka and this piece stands alone from a technical and usability standpoint. If your operating in the high county you will have this on all day. It breathes going up, keeps you warm enough when you stop moving, and becomes a perfect mid layer under a down jacket when the temp drops. I would give it 5/5 on all the aspects noted above plus it’s quiet.

Derek Heitzman
Reviewed On 09/30/2022

Sitka absolutely nocked it out of the park with this Ambient pullover. I wear it all the time, and that's even when I'm camping. I wear it to bed, it doesn't make me overheat or get cold sleeping in a tent in a Quilt. Perfect piece, that will get more uses not thought of yet. I just bought another one, I like it that much!

Mike C
Reviewed On 09/24/2022

Awesome piece of gear. Used this from 27-65 degree weather. It keeps the moisture off your base layers when your humping it up the mountain, works awesome as a mid layer on cold days, and an out layer on cooler days. If you don’t have one get one. By far will be in my pack or on me every hunt.

Reviewed On 09/23/2022

Full disclosure... I have not worn this hunting. Just got it in the mail and have worn it around the house. At first touch it feels like its not going to be very durable. Definitely will tear on branches, etc.. when hiking on the mountain. The feel is light and stretchy which is great. Its super comfortable. Like others I would say it needs a pouch or front pockets but that shouldnt be a huge issue as I pretty much always wear a vest. Im 6'2" 215 and got XXL. It fits good but probably cant layer too much under it. I would've liked the sleeves a touch longer. Overall: Comfortable, great feel, probably not super durable but will be nice for hiking in on cool mornings

Reviewed On 09/16/2022

Simply put, it's the perfect active insulation layer. It's a keystone piece in my layering system that has such a broad spectrum of usefulness it'll probably be that one hoody that stays in my pack all year. Cuts light wind and precip, breaths well when moving, and keeps you warm when stationary. Super quiet also. Love this hoody.

Reviewed On 09/15/2022

Extremely good warmth to weight ratio, breathes well when you’re on the move, and overall a great piece. If the ambient jacket had a hood I would have got it instead because it has hand pockets. This hoodie does not which is odd. I’m 6 foot 215lbs and an XL fits great. Bought in pyrite and will get a ton of use in and out of the woods this fall and winter. Hand pockets is the only reason this isn’t 5 stars.

Robin Pitt
Reviewed On 09/09/2022

It is really nice but no lower pocket or pockets is a deal breaker for me. If I'm going to spend that kind of cash it needs some pockets!

Reviewed On 09/03/2022

Awesome for its intended use. It has a nice balance of lightness, warmth, and great mobility. Very quiet also. However, making this with no lower hand pockets or kangaroo pouch for quickly warming hands on a cool morning like today is very odd.

Reviewed On 06/27/2022

I ordered this for rifle season in Montana. I haven't used it in the field yet but it is exactly as described. I ordered a 2XL. I'm 6'0, 235, 52 inch coat and it fit great. This will compliment the Jetstream and puffy coats perfectly for what I am doing. I will review after Montana elk hunting and Illinois deer hunting.

Mike l
Reviewed On 06/22/2022

Got this piece as a midlayer. Got the size LT which fits perfect for me being at 200 and 6’ tall. This fits excellent under the kelvin light down jacket which is a large and a large tall mountain jacket, with no restriction of movement.

Jairus R
Reviewed On 06/16/2022

I have put on a lot of Sitka out of the box, but this may be the best piece of gear I have ever put on. The fit is perfect, the material inside has to be the most comfortable I've felt in the Sitka line. The material is silent for all things outdoors and hunting. Sitka hit all marks on this one!

Wes Siler
Reviewed On 06/07/2022

Throw the Ambient on for a cold pre-dawn start, and it feels as warm as a puffy. But start moving, and your apparent body temperature just doesn't spike. The ultralight DWR shell also punches above its weight with weather resistance. Truly a layer you can put on and leave on through pretty much anything

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