HyperDown Jacket
Model: 600402-DLI-M
Description
When single-digit temps and pre-dawn miles test your limits, your insulation can't afford to fail. The Hyperdown Jacket is built for the ounce-counting big-game hunter who refuses to sacrifice warmth for weight. Loaded with 800-fill PrimaLoft® Gold down blend, it locks in heat even when wet conditions threaten to compromise your core temp—delivering reliable warmth through the coldest, most unforgiving backcountry hunts. A 27D ripstop face fabric gives it the durability to keep pace with rugged terrain and brutal conditions, while its precision-cut fit accommodates your layers and optics harness for fast, unencumbered deployment when it counts. And when the pack-out begins, it compresses down to near nothing—earning every inch of space it takes up. This is the warmest puffer jacket we make. Built light. Built tough. Built for the hunt.
FEATURES
- Built to fit over your other layers
- 230 grams of 800 fill power Primaloft Gold down blend with Cross Core Technology
- 90% down, 10% synthetic
- 27D Ripstop Polyester face and 10D Ripstop Nylon lining resists snags and tears
- Zippered hand pockets
- Two interior mesh dump pockets to warm socks, liner gloves, or other accessories.
- Adjustable brimmed hood and hem
- Elastic cuffs
- 1 lb 4.6oz / 583g in Size L
-
Packable, compression-resistant performance of synthetic insulation
Size Chart
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.

JACKET & TOPS
|
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" |
PANTS
|
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" |
|
|
Small |
28 - 30" |
31" |
33" |
|
Medium |
31 - 33" |
31" |
34" |
|
Large |
34 - 37" |
32" |
34" |
|
X-Large |
38 - 41" |
32" |
34" |
|
2XL |
42 - 45" |
32" |
34" |
|
3XL |
46 - 49" |
32" |
34" |
GLOVES
|
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" |
FIT GUIDE
SITKA Gear is engineered with a specific fit and purpose. These functional designs to provide you with authentic, high-performance garments for any situation you encounter.
FIT DESCRIPTIONS
Find your perfect fit. SITKA Gear offers three distinct fit descriptions, each designed to allow for layering according to the garment's role in your system.

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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FAQ
Do you offer any discount codes?
Yes we do offer discount codes to first time buyers when they sign up to our email subscriber list.
Why is my discount code not working?
Our discount codes have some exclusions. Those exclusions include products that are already on sale, and products from manufactures(Mathews, Sitka Gear, Stone Glacier, Crispi) that have a MAPP policy in place that doesn't allow the use of discount codes to be used once the items are in the cart. If you have anymore questions about our discount codes please email us atsales@jamesriverarchery.com
Do you match competitors pricing?
If you find a lower price on an item available in the same brand, year model, color, and size on another qualifying retailer’s website, we will match the price. We cannot match shipping fees. We are unable to match prices from auction websites, membership or club websites, outlet websites, non-U.S. based websites, discount websites, and third-party markets or resellers on Amazon.com. We also will not price match other qualifying retailer’s site-wide promotional discounts, coupons, bundle offers, rebates or mail-in offers. Please contact us at 417-720-1756if you find a lower price, and we will assist you on how to place the order at the adjusted price.
Do you offer a military discount?
Please visit our military discount page to learn more about our military discount policy.
