Broken-in over technical
First day hike gear
You need less than you think and more than nothing: a broken-in pair of trail shoes, three layers, about 0.5 litres of water per hour, and the ten essentials in a 15 to 30 litre pack. This reference lays out each item with typical weights, the failure it prevents, and the order to pack it in.
Broken-in over technical
0.5 litres per hour
Three layers, no cotton
15 to 30 litres
Headlamp under 100 g
Shelter, water, fire, food
The Ten Essentials list covers navigation, headlamp, sun protection, first aid, knife and repair kit, fire, emergency shelter, extra food, extra water and extra clothes.
The list is a checklist, not a shopping cart: each entry names a failure mode you would otherwise meet on the trail. Navigation covers an unplanned route change; the headlamp covers finishing after dark, the most common day-hike emergency; sun protection covers exposure on open ground.
First aid, knife and repair kit cover small injuries and broken gear; fire and emergency shelter cover an unplanned night out; extra food, extra water and extra clothes cover the gap between the plan and the actual day.
A common planning figure is about 0.5 litres of water per hour of moderate hiking in moderate temperatures.
Two litres for a four-hour day is the usual arithmetic, and it is the single heaviest line in the pack: water weighs one kilogram per litre. The figure assumes moderate temperature and moderate pace; it is a planning number, not a guarantee.
Extra water is one of the ten essentials, so the carried amount should sit above the planned consumption rather than exactly on it.
The three-layer system combines a wicking base layer, an insulating mid layer and a wind- and rainproof shell.
The base layer moves sweat off the skin, the mid layer traps warm air, the shell stops wind and rain. Each layer can be added or removed on the move, which is why three thin layers beat one thick one for a day hike.
The standard warning is cotton kills: wet cotton loses insulation and speeds up heat loss, so base layers are wool or synthetic. Extra clothes are also one of the ten essentials, so the shell and a spare warm layer belong in the pack even on a sunny forecast.
Each item is shown with its typical weight and its place in the pack.
Broken-in trail shoes or boots matter more on a first hike than any technical feature.
A first hike fails on hot spots and blisters long before it fails on ankle support. The pair you have already walked in, with no rubbing points, outperforms any untested feature list.
Trail shoes suit most day hikes on maintained paths; boots add coverage for rough or wet ground. The comparison that matters is the one against your own foot, not against a spec sheet.
| Essential | Typical weight | Failure it prevents |
|---|---|---|
| Navigation | under 100 g | Unplanned route change with no way back |
| Headlamp | under 100 g with fresh batteries | Finishing after dark |
| Sun protection | under 50 g | Exposure on open ground |
| First aid | 50–150 g | Small injury ending the hike early |
| Knife and repair kit | 50–100 g | Broken gear on the trail |
| Fire | under 50 g | Cold and wet on an unplanned night out |
| Emergency shelter | 100–200 g | Three hours without shelter in the Rule of 3s |
| Extra food, water, clothes | varies with the day | Gap between plan and actual conditions |
Survival-order and Rule-of-3s figures follow published statements by Tom Brown and Cody Lundin; the ten-item list follows the standard Ten Essentials checklist.