As nouns the difference between daypack and daysack
is that daypack is a small backpack, suitable for a one-day hike or for carrying books around campus while daysack is a daypack.
daypack
English
Alternative forms
* day pack
Noun
(
en noun)
A small backpack, suitable for a one-day hike or for carrying books around campus.
Synonyms
* haversack
* knapsack
* rucksack