Short answer: for fashion-specific apps, ZALORA and Shopee currently offer the fastest built‑in delivery options in Malaysia (express / same‑day / next‑day depending on your area). For the absolute fastest delivery (within hours), use an on‑demand courier tile (GrabExpress, foodpanda’s pandago or Lalamove) to pick up from a nearby store — those can deliver in under 60 minutes in many cities. (support-my.zalora-ops.com)

Details and when to pick each:

• ZALORA — has Express / Same‑Day and Next‑Day options for items “sold by ZALORA”; availability and cutoff times depend on your postcode (commonly fastest inside Klang Valley and selected areas). Good choice when the item is sold/fulfilled by Zalora. (support-my.zalora-ops.com)
• Shopee — offers Same‑Day and Next‑Day delivery programs (with an On‑Time Guarantee); eligible coverage is limited to certain areas and depends on seller/warehouse proximity. Often cheaper for same‑day within covered zones. (lowyat.net)
• Lazada — also runs express / same‑day options for selected products and areas (historically concentrated in Klang Valley; check the product page for eligibility). (lowyat.net)
• On‑demand couriers (GrabExpress, pandago/foodpanda, Lalamove, Zepto/others) — if you need clothing immediately and a nearby store has stock, these apps can pick up and deliver in minutes to a few hours (pandago advertises <60 minutes; GrabExpress and Lalamove offer instant/4‑hour options). Use this when speed matters more than buying through a marketplace. (foodpanda.my)

Quick tips:

• Always enter your postcode in the retailer app (Zalora / Shopee / Lazada) and look for “Express / Same‑Day / Next‑Day” labels on the product page before checkout. (support-my.zalora-ops.com)
• For absolute fastest: confirm the store has the item in a nearby pickup location, then request an on‑demand courier (pandago / GrabExpress / Lalamove). Expect fees (pandago/Grab start from a few ringgit). (foodpanda.my)

If you tell me your city or postcode (for example: Kuala Lumpur / Petaling Jaya / Penang), I can check which option will be fastest for your exact location and link the relevant delivery options.