MANDATORY GEARS
*The list is subject to change.

Mandatory Gears


Info
100K
50K
20K
Water
proof
jacket
(including 
hood)
Seam-sealing 
treatment 
required. 
Disposable/
plastic 
raincoat not 
allowed.
DSQ
DSQ
DSQ
Smart
phone
Must be 
turned on 
during  the 
race.
DSQ
DSQ
DSQ
Whistle
For alerting 
location in 
case of 
distress.
DSQ
DSQ
DSQ
Survival 
blanket
Use to 
maintain body temperature 
in emergency situations 
such as 
hypothermia, 
injury, 
distress, etc. 
(Recommended minimum size 
of 130cm * 
200cm or 
more).

DSQ
DSQ
DSQ
First-aid
kit
Compression bandage (6cm x 1m or more), disinfectant 
bandages, 
disinfectant or disinfectant 
tissues.
DSQ
DSQ
DSQ
Water
bottle 1L 
or more
Flasks (water 
bottles) or 
reservoir
(water bag) 
containers of 
500ml, two or more, are 
allowed. 
Disposable 
bottled water 
bottles are not allowed.
DSQ
DSQ
DSQ
Running 
vest 
or belt
For the 
purpose of 
storing 
mandatory 
equipment 
and other 
portable 
items.
DSQ
DSQ

Portable 
charger
Portable 
charger for 
phone 
charging, 
5,000mAh or 
more.
DSQ
DSQ

Headlamp
Minimum 
brightness of 400 lumens or more 
recommended 
(must be 
usable for 
over 10 hrs). 
Cannot be 
replaced by a 
flashlight or 
phone light.
DSQ
DSQ

Headlamp spare 
battery
AAA batteries 
or, in the case of 
rechargeable 
types, 
including a 
general 
portable 
charger and 
cable.
DSQ


Spare 
lamp or
flashlight
Minimum brightness of 
200 lumens or more 
recommended 
(must be 
usable for 
over 10 hrs). 
Flashlight is allowed, cannot be replaced by 
phone light.
DSQ


Trail
running
shoes
Trail running 
shoes with 
an outsole 
featuring 
gripping 
function 
suitable for 
mountainous 
terrain.
1hr
1hr
1hr
Personal
cup
Disposable 
paper cups are not allowed 
and must be  
brought 
separately 
from water 
bottles.  
No cups 
provided at 
water  
stations.
1hr
1hr
1hr
Supplements
or snacks
Recommended 200kcal or 
more for 
energy 

replenishment.
30
min
30
min
30
min
Safety light 
(flashing 
light)
Flashing light 
for 
identification at night.
1hr




Recommended Gears
Eating 
utensils, 
bowl, etc.
Applicable only to 100k / 50k 
courses. Disposables are not 
provided when eating at a CP 
(Checkpoint).
Poles (Sticks)




Hat, Buff, 
Sunglasses, 
etc.




Gloves



Smartwatch



Insulating 
Pants 
(Long Pants)




Windproof 
Jacket 
(including 
hood)
In case of 
severe 
weather, can be 
designated 
as 
mandatory 
after 
separate 
notice 
/ Cannot be a substitute for a waterproof jacket.
(When designated as mandatory)
DSQ
(When designated as mandatory)
DSQ

REGISTRATION INFO

1. Visit IN THE TRAIL

Your can register to 2026 SEOUL 100K through IN THE TRAIL website.

https://inthetrail.com

2. Join & Login

For application participation 

On the 'IN THE TRAIL' website, 
sign up and then log in.

3. Register

On the 'IN THE TRAIL' application page 

Find the 2026 SEOUL 100K product and proceed with the payment.

Notes

If you need to update my information, please contact the secretariat 

Please inquire.


*If you applied to participate after changing your address 

The address will be changed.


*If you changed your address after applying, the updated address will not be reflected.