Here's an item that I had covered as a wish-lust item back in January when I backed the Kickstarter for the PACE lid.
PACE stands for Primary, Alternate, Contingency, Emergency. It is a cache that replaces the lid of a wide-mouthed bottle such as a Nalgene. I've got several, both Nalgene and Kathmandu and the idea of them doing double duty was just too good.
When planning for events in life you have to expect that unforeseen things may happen and knowing this and being able to prepare is empowering. Also, keeping your gear handy and secure is a good thing.
The PACE lid container has a capacity of 300mL (10oz), it's deep enough for an ID or credit card as well as a variety of other gear, with a recessed lip to fit a bent ID or credit card.
The container is 7.6cm (3") in diameter and 5.7cm (2.25") inches deep. There's a small recessed lip around the perimeter that can secure items vertically and in place if they are bent, like cards, matches, other gear items.
I found that I could load at least 8m of paracord, along with my favorite gear tie, the Fishbone Piranha.
I found that I could stash a variety of items, from a roll of tape, keys, pocket-tools and a watch, as well as my ID. The idea I had was that I would have a waterproof and unobtrusive cache that I could leave on the beach, or toss into a daypack.
The one downside is, that it is a pretty bulky addition to a Nalgene.
You can see that it adds a fair length to the bottle, and that won't go un-noticed. Something to bear in mind.
The seal on the Nalgene bottle was solid, and the threading was well machined, so I didn't have any problems with leaks.
One thing that occurred to me that I could store in it was a powdered sports drink, so I could keep my electrolytes up on the trot, my thought was that I could fill it up the 10oz capacity, enough to make several liters.
To give you another idea of how much capacity the PACE lid offers, I filled it with 70 Mentos. You could of course fill it with your own snacks or confection of choice, enough fishing line, lures and hooks to have a fishing trip set and ready to go.
Survival Kit:The folks behind the PACE lids also offer a fully kitted out survival option, developed to fit specifically into a PACE lid.
Their kit includes:
(1) Adventurer Button Compass (NATO/U.S. Military Issue)
(10) All Weather Survival Matches (NATO/U.S. Military Issue)
(1) Derma Safe Razor Knife (U.S. Military Approved)
(1) Sewing Kit w/6 Safety Pins (Assembled in USA)
(6) MP1 Water Purification Tablets (U.S. Military Issue)
(1) Adventurer Survival Whistle (SOLAS/NATO Approved)
(1) Mini Survival Fishing Kit (Assembled in USA)
(1) Type 1A Utility Cord (U.S. Military Approved)
(1) Brass Snare Wire (Trapping and Equipment Repair)
(1) Emergency Signal Mirror (Daytime Emergency Signaling)
(1) Compact Flint Fire Starter w/Striker
(6) Adventurer Tinder Quik Fire Tabs
(1) Adventurer Fresnel Lens Fire Starter
(1) Water Bag
(10) All Weather Survival Matches (NATO/U.S. Military Issue)
(1) Derma Safe Razor Knife (U.S. Military Approved)
(1) Sewing Kit w/6 Safety Pins (Assembled in USA)
(6) MP1 Water Purification Tablets (U.S. Military Issue)
(1) Adventurer Survival Whistle (SOLAS/NATO Approved)
(1) Mini Survival Fishing Kit (Assembled in USA)
(1) Type 1A Utility Cord (U.S. Military Approved)
(1) Brass Snare Wire (Trapping and Equipment Repair)
(1) Emergency Signal Mirror (Daytime Emergency Signaling)
(1) Compact Flint Fire Starter w/Striker
(6) Adventurer Tinder Quik Fire Tabs
(1) Adventurer Fresnel Lens Fire Starter
(1) Water Bag
(1) Compact First Aid Kit
--Sting Relief (2 packets)
--Butterfly Bandages (2)
--Band Aids (6)
--Moleskin (3" x 4")
--Triple Antibiotic Ointment (2)
--Zip Lock Bag
(2 packets) Hand Sanitizer
(2) Deet Bug Repellent Wipes
(1) Silica Gel Desiccant (Moisture Absorbent)--Sting Relief (2 packets)
--Butterfly Bandages (2)
--Band Aids (6)
--Moleskin (3" x 4")
--Triple Antibiotic Ointment (2)
--Zip Lock Bag
(2 packets) Hand Sanitizer
(2) Deet Bug Repellent Wipes