
Hydration at the Core
Clean water on demand with boiling capability for redundancy
Built to order Ships around two weeks from today by UPS Ground.
Ships UPS Ground
$34.99
$24.00
$17.00
The HYDROSEN Survival Kit by LYNX Survival Systems is an ultra-premium hydration-first survival platform built on the GRAYL Mission EXP Hip Pack. It is more discreet and low-profile than the OPERIS Go-Bag while maintaining professional-grade performance. Designed for overlanders, expedition teams, and preparedness-minded civilians, HYDROSEN equips you with the tools needed to survive the critical 72-hour window—without drawing unnecessary attention.

Clean water on demand with boiling capability for redundancy

Multiple ignition methods ensure flame in any condition

Compact protection against exposure and harsh weather

Field-ready trauma gear for bleeding control and injury management

Trusted tools for orientation and rescue signaling

Compact folding tools plus add-on knife options

27 of the 40 pieces are sold on their own here, at the prices shown.

Every review is shown, good or bad.
“This kit is well built with top notch gear! Some folks may think the cost is huge, but for what you get in this pre-built it is worth every penny!”
“This has to be the most advanced kit I've seen. It covers all the basics for wilderness travel. I am very happy with the contents and the Grayl Mission Hip Pack. Once again Stay Ready has knocked it out of the park! Highly recommend.”
From a full all-hazards system to a pocket trauma kit. Match the kit to how you'll actually use it.
| OPERIS | EXPIDRA | HYDROSEN | INCOG | DEFENDER IFAK | |
|---|---|---|---|---|---|
| Best For | Grab-and-go 72-hour readiness | All-hazards & get-home / evacuation | Discreet, gray-man 72-hour carry | Pocket-sized backup / contingency | Trauma & bleeding control (EDC medical) |
| Primary Focus | Complete modular survival system | Full-spectrum, backpack-scale capability | Hydration-first, low-profile | Minimalist sustainment essentials | Professional-grade trauma response |
| Form Factor / Carry | Maxpedition Proteus Versipack | GRAYL Mission EXP 30L backpack | GRAYL Mission EXP Hip Pack (4.5L) | Steel tin (pocket-sized) | Vacuum-sealed pouch (pocket / EDC) |
| Packed Weight | 5–8 lb | Backpack-scale * | — * | 7.3 oz | 4–8 oz |
| Price (from) | $570 | $2,016 | $1,040 | $90 | $30 |
| Build / Lead Time | Built-to-order, 7 days | Built-to-order, 21 days | Built-to-order, 14 days | Hand-assembled (USA) | NAR-built, ships ready |
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From $569.99
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From $2,016.49
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From $1,039.99
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$109.99
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From $29.95
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| Carry System | GRAYL Mission EXP Hip Pack (4.5L) |
|---|---|
| Profile | Gray-man / low-profile |
| Build | Hand-assembled to order |
| Lead Time | 14 business days |
| Shipping | Ground only (hazardous goods) |
A small shop that carries gear we'd stake our own lives on, and backs every order with real support.
Every brand we carry has been vetted in the field before it earns a spot.
LYNX is our own brand. Every kit is assembled to order and checked before it ships.
Real people on the phone and email, Monday to Friday, 8 to 4 Pacific.
Based in Southern California, with US-based customer care.
CUSTOM TRAUMA KITS & LOADOUTS
LYNX Survival Systems, a Stay Ready Outdoors brand, was created by Charles Quarto after career in uniform, hours on the range, and decades under open skies. The company builds custom trauma kits, go-bags, EDC carry systems, and mission-based gear assemblies — the loadouts aren't designed for catalog photography, they're designed to perform under pressure. Quarto serves law enforcement, military contractors, security teams, and preparedness-minded civilians who'd rather have the right kit than the trendy one.
HYDROSEN is built on a hip pack platform, making it more discreet, and easier to carry in urban or low-profile settings, while OPERIS is a more modular, more compact kit where being overt isn't a concern.
HYDROSEN is hydration-first and fire/shelter focused. Food procurement can be added through the optional Fieldcraft Micro Harvest Kit.
Yes. The GRAYL Mission EXP Hip Pack includes a padded lumbar belt and adjustable straps, making it comfortable for extended carry even when fully loaded.
Most in-stock orders are processed within 1 to 3 business days, not counting weekends and federal holidays. Special-order, dealer-direct, custom, and LYNX Survival Systems orders can take longer. Lead times shown on product pages are estimates, not guarantees.
Typical carrier transit after that: Economy 5 to 7 business days, Expedited 2 to 3, Overnight 1. These are carrier estimates, not guarantees. Some items, such as lithium batteries, aerosols, and safety matches, may be limited to ground shipping.
Free Economy shipping on qualifying orders over $150 to the contiguous US, on eligible products. Oversized, heavy, freight, hazardous-material, dealer-direct, custom-built, and special-order items may be excluded. Oversized and freight items, such as rooftop tents, recovery equipment, and Pro Eagle products, may carry extra shipping charges. If extra charges apply, we'll let you know before the order ships.
Some items ship directly from the manufacturer or a supplier partner on their own schedule, so an order can arrive in more than one package with more than one tracking number. Full details: Shipping Policy.
You have 30 days from receiving your order to request a return on eligible items. Email info@stayreadyoutdoors.com with your order number, the item, and the reason, and wait for return authorization before you ship anything back. Returns sent without authorization may be refused.
Items must come back in like-new condition: unused, unmodified, unworn, unwashed, and free of odors, dirt, stains, pet hair, and damage, with all original packaging, manuals, accessories, and tags, plus proof of purchase.
For standard parcel items, you pay return shipping unless the return is due to our error, shipping damage, or a verified defect. If we provide a prepaid label, its cost may be deducted from your refund. For oversized, freight, dealer-direct, and special-order items, you pay return shipping unless the item arrived damaged, defective, or incorrect. Original shipping charges aren't refunded. Some items may carry a restocking fee of up to 15%, and we'll tell you during authorization.
Some items are fulfilled by third-party suppliers and follow that supplier's return policy, so eligibility, refund timing, return shipping, and restocking fees may differ.
Approved refunds go to your original payment method. Allow up to 10 business days after approval, and your bank may take longer to post it. Full details: Return & Refund Policy.
These can't be returned or refunded, except where the law requires it:
For built-to-order, custom, and special-order items, exceptions may be made only for verified manufacturing defects, shipping damage, or fulfillment errors. For food and drink, replacements may be issued only for verified manufacturing defects or shipping damage reported within 5 days of delivery, with photos.
Not sure whether an item qualifies? Email info@stayreadyoutdoors.com before you order.
Alaska, Hawaii, Puerto Rico, Guam, and other U.S. territories aren't eligible for free shipping, and extra freight charges may apply. If your order needs a shipping quote, we'll contact you before it ships. If you decline the quote, the order may be canceled and refunded. APO/FPO addresses are also excluded from free shipping.
International shipping is available on select products and destinations, and some products may be restricted from international shipping. You're responsible for import duties, taxes, customs fees, brokerage fees, and meeting your country's import rules.
Full details: Shipping Policy.
Inspect your order when it arrives. If anything is damaged, defective, or wrong, email info@stayreadyoutdoors.com within 7 days of delivery (5 days for food and drink) with your order number, a short description, and photos of the item and the packaging.
You don't pay return shipping on items that arrived damaged or wrong, or with a verified defect. Some items fulfilled by third-party suppliers follow that supplier's policy instead. Reporting after 7 days may limit our ability to pursue a claim with the carrier, and while we may help with a carrier claim, approval is up to the carrier.
Package lost or never arrived? Contact us within 7 days of the expected delivery date. For freight deliveries, inspect the shipment before you sign and note any visible damage on the carrier's delivery receipt.
Yes. Call (562) 294-6269, Monday to Friday, 8:00 AM to 4:00 PM Pacific time, or email info@stayreadyoutdoors.com. We reply within one business day.
We'd rather talk you out of a kit that doesn't fit your mission than sell you the wrong one.
Yes. Current and former U.S. military, military spouses and dependents, and first responders, including law enforcement, fire, and EMS, can save up to 10% on most of our products through GovX ID.
Verify on our GovX discount page and you'll get a single-use code to enter at checkout. For later orders, log in with GovX ID for a new code (limit one code per day). The GovX code can't be combined with other discounts.
Must ship via ground due to hazardous goods. Hand-assembled to order — allow up to 14 business days lead time. This kit is intended for use in survival or emergency situations. Stay Ready Outdoors and LYNX Survival Systems are not responsible for any bodily harm or death which may occur during the use of this kit or its individual components. It is the sole responsibility of the end user to: Possess the training and experience needed to properly use this equipment. Familiarize themselves with each product’s limitations and specifications. Know and follow all laws pertaining to the components contained within the kit.