Name: Kelvin Aerolite Vest
Rating: 4.7 (9 reviews)

Kelvin Aerolite Vest

Hunt Solids : Dusty Olive

$199.00

(9 Reviews)

SIZE GUIDE

In a sea of outdoor specialization, having versatile gear as well is a strength. This lightweight, compressible vest maximizes warmth while minimizing bulk. Use it for everything from backcountry hunts and off-season scouting trips to everyday life; it slips comfortably under a shell whenever you need an extra shot of warmth. Synthetic PrimaLoft® Gold Insulation with Cross Core™ technology replicates the aesthetics and performance of down insulation, but with warm-when-wet performance.

Product ID: #50258

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"

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 - 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

Weight: 9.6 oz.
Synthetic PrimaLoft® Gold Insulation with Cross Core™ technology replicates the warmth and compressibility of down, but with the benefit of warm-when-wet performance
Lightweight insulation (35% recycled) is infused with silica aerogel, a nearly weightless material that’s composed of more than 95% air and acts as additional thermal insulation
20-denier polyester face with durable water repellent finish, 20-denier polyester backer
DWR finish resists precipitation and prevents face fabric from wetting out
Deep, zippered chest pocket safely stores your valuables

WARMTH

PACKABILITY

WIND PROTECTION

DURABILITY

Fit

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

Technology

Why We Made This

The best thing about synthetic insulation is that it stays warm even in extreme, wet conditions. Until now, that reliability has come at the cost of bulkier and heavier products. The Kelvin Aerolite Vest harnesses the insulating properties of trapped air to create synthetic insulation that replicates the low-bulk, highly compressible characteristics of down, but with warm-when-wet performance. We designed this go-to, versatile layer to keep you warm when you need it, yet disappear in your pack when you don’t.

Product Comments

9 Reviews

Write a Comment

Nick Guebert

Reviewed On 09/11/2022

I’m 6’3 245lbs and the XL fits perfectly. The armholes can be a little bit tight if you’re trying to put this over a jacket, but it seals up perfectly over a mid weight layer and keeps the wind out so well. Unbelievably light and warm, would recommend.

Paul

Reviewed On 03/19/2022

Purchased the jacket last year for Colorado elk in September. Love the jacket so much I had to get the vest. The jacket feels like you're wearing a long sleeve shirt and the vest feels like a tank top. The warmth to weight ratio is off the chart. I look for Sitka to redesign many garments with this insulation.

Jeremy Sanchez

Reviewed On 03/16/2022

The perfect lightweight vest on the market! Durable, comfortable, lightweight, and great packability. If you're looking for a casual vest to wear around the town look no further.

Emmett Albertson

Reviewed On 02/11/2022

I have never owned a vest. I am super excited about this vest. Quality is stellar, and the wife likes the way it looks!

Travis L

Reviewed On 12/31/2021

Great fit, super durable, lightweight and packable. I bought the black in Large. I’m 6’1” and 190 lbs. It’s great to layer and keeps core warm. My second Sitka purchase. I’ll be back for more.

Shanem M

Reviewed On 12/20/2021

Definitely want to size up! I normally wear a medium to large and needed an extra large with this vest. Besides that, a fantastic piece overall.

Brent

Reviewed On 12/19/2021

I have two of these. The first I ordered in XL thinking it would be handy to throw over my jetstream jacket during low activity without having to constantly take off my jacket. Extra warmth was ok, but I apparently don’t worry about my gear much when I get into the elk. It’s pretty shredded after one season. Totally my fault. Won’t do that again. Second one ordered in large to layer under the Jetstream Jacket, as Sitka probably intended. Extra warmth is much more noticeable, but not too much to hike in if it’s cold, especially with the pit vents open. This vest feels weightless, and fits my frame perfectly in large. 5’9” 170lbs.

Brady

Reviewed On 12/10/2021

The fit wasn't what I expected and felt somewhat tight around the torso. I would size up.

Rodney Thomas

Reviewed On 10/04/2021

Fit is very strange. Very tight under the armpits, yet is baggy around the mid section and neck area. The fit of the jet stream and Dakota are much better. I have a lot of Sitka gear and this piece wasn’t designed as a mid layer fit wise.

1 of 3

Steven Drake - 06.22.2021

Backcountry Essentials

Steven Drake has logged more time than most backpack hunting in remote mountain ranges and prairie. As we all know, the lessons and niche information we glean from experience is invaluable. Information on layering and camping gear is pretty simple to find – but those small, unpredictable items that are worth their weight in gold in your pack are typically discovered after a bad experience. Through hard-earned mistakes, Steven has dialed in a list of obscure gear that he carries in his pack on every hunt. Here’s his full list...

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