You Don't Need Much to Start
A lot of running-gear content assumes a budget that doesn't match most new runners' actual starting point -- premium shoes, a GPS watch, a hydration vest, before someone has even confirmed they enjoy running three times a week. The honest starter list is much shorter: proper running shoes, moisture-wicking apparel, and a way to carry water. Everything else is worth adding only once a habit is established.
This matters more in Southeast Asia specifically, where heat and humidity punish the wrong gear choices faster than they would elsewhere -- cotton apparel and shoes without breathable mesh turn an easy run into a miserable one within a few kilometers, regardless of price.
The One Item Worth Getting Right: Shoes
Proper running shoes are the one place a genuine beginner shouldn't cut corners entirely, since running in the wrong footwear is the most common cause of early injuries that end a new habit before it starts. That doesn't mean expensive, though -- an entry-level running shoe built for the distance a new runner is actually covering (a handful of kilometers a week) does the job without paying for performance features a beginner won't use yet.
Decathlon's in-house Kalenji line is built specifically around this: a real running shoe, not a general athletic sneaker repurposed for running, priced well below most dedicated running-shoe brands.
Apparel: Wicking Fabric, Not Cotton
A cotton t-shirt absorbs sweat and stays wet, which in Southeast Asia's humidity means chafing and discomfort well before the shoes become the limiting factor. A basic technical tank top or tee, built from moisture-wicking synthetic fabric, solves this at a price close to what a cotton shirt costs anyway -- this is genuinely one of the cheapest upgrades in the whole kit relative to how much it improves comfort.
Socks matter more than most beginners expect too: a proper running sock reduces blisters in a way a regular cotton sock doesn't, and it's a small enough cost that there's little reason to skip it.
Carrying Water Without a Hydration Vest
A hydration vest is genuinely useful for long runs, but a new runner doing 2-5km a few times a week doesn't need one yet -- a simple, cheap soft water bottle that fits in a hand or a small bag covers the early stage of training just fine. Save the vest purchase for when training volume actually justifies it.
The overall philosophy for this stage: buy the minimum that removes real friction (bad shoes, chafing fabric, no way to carry water), and let actual training habits -- not marketing -- decide what gets added next.