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Hydraulic Dry Pack

A beefy backpack for beefy adventures

$169.95 – $249.95

Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. The test produces a Lower rating (for male sleepers) and a Comfort rating (for female sleepers). Both are listed in the features table on the product page.

A unisex sleeping bag with a Lower limit of 23ºF means a man should be comfortable down to air temperatures of 23ºF. The same bag will also have a Comfort limit, in the realm of 32°F, so a woman would be comfortable down to an air temperature of 32ºF. These ratings require a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.

A variety of factors impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag, an appropriately insulating sleeping pad and a liner as a sleep system. For example - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner.

$169.95

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Description

The Hydraulic™ Dry Pack is a super heavy duty dry pack ideal for portaging and canyon runs. Whether in the airport, running a river or out in the field, the EVA foam and air mesh harness will deliver comfort and air flow for small or large loads. The removable harness attaches to compatible Hydraulic™ Dry Bags with lightweight but very robust aluminum buckles.

Read more about which dry bag/pack is right for you HERE

Highlights

Durability

It'll survive its own solo trip down Alaskan river rapids

Waterproofness

It can handle splashes all day, and very short submersions

Best Use

Canyoneering, Base Camp, Paddle Sports, Bike Touring

Features

  • 600D TPU laminated heavy duty waterproof fabric
  • UV resistant PVC free fabric withstands cold temperatures
  • Waist strap (35L) or hip belt (65-120L) help support the load when the pack is filled.
  • Non-wicking TPU roll-top closure with an innovative interlocking profile that is secure and waterproof
  • Welded construction for permanently sealed seams
  • Welded durable TPU lash patches for carrying gear or securing the pack.
  • 7075-T6 anodized aluminum buckles are robust and fail safe
  • Fully adjustable back length and height adjustable sternum straps
  • Low-profile attachment points to reduce snagging when the harness is not attached
  • The harness system is easy to put on and take off. Screen-printed diagrams on the welded patch show the herringbone pin/harness removal steps
  • 35L size has a 25mm webbing waist belt

Technical Features

600D Hydraulic Fabric

The burliest fabric in all of Sea to Summit's products, this is constructed similarly to our Stopper fabric but has a few key differences. The Hydraulic fabric starts with a 600 Denier carrier fabric, then has TPU laminated to both sides of it to create an unstoppable waterproof, abrasion, and puncture resistant fabric. With two full and separate layers of TPU, you have some built-in redundancy against holes from abrasion. This fabric is also UV stabilized and won't crack in the cold.

Thermoplastic Urethane (TPU)

Thermoplastic Urethane (TPU) is a PVC-free material used in a number of functional areas within Sea to Summit products:

 

  1. As an airproof barrier in our Air-Sprung Cell™ and Self-Inflating mats. Here it is used in a liquid-extruded format – the TPU bonds to the face fabric for the highest possible level of reliability.
  2. As a waterproof barrier in our Accessory Guide Cases and Map Cases; and in several models of our Dry Sacks. Here it is used in a film format, where its superior flexibility (even in cold weather) and waterproofness are key.
  3. As a waterproof barrier in the Nylon Folding Bucket. This particular film is also food grade – ideal for water storage.
  4. As a transparent window in View Dry Sacks and Travelling Light products – allowing you (and TSA inspectors) to see the contents.

PVC Free

This product is free of any Polyvinyl Chloride (PVC). This means that the production process is significantly more environmentally friendly, and the disposal of the product at the end of its life will also not burden the environment. With advances in modern polymers, it also means there's no reduction in performance.

Tech Specs

Product Details

Best Use
Canyoneering, Base Camp, Paddle Sports, Bike Touring
Fits Torso
15 - 24 in / 38.1 - 61 cm
Fits Waist/Hips
24 - 38 in / 61 - 96.5 cm
Frame Type
None
Number of Exterior Pockets
None
Pack Access
Top (rolltop)
Waterproof
Yes
 
35 LITER
65 LITER
90 LITER
120 LITER
DIMENSIONS
GEAR CAPACITY (L)
WEIGHT
13 x 8 x 28 in / 33 x 21 x 70 cm
35L
2 lbs 4 oz / 1010g
14 x 10 x 33.5 in / 38 x 25 x 85 cm
65L
2 lbs 15 oz / 1340g
16.5 x 11.8 x 39.5 in / 42 x 30 x 100 cm
90L
3 lbs 7 oz / 1550g
18.5 x 12.6 x 44.5 in / 47 x 32 x 113 cm
120L
3 lbs 15 oz / 1790g

Customer Reviews

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