Great — here are good places to shop in Malaysia for Y2K dress‑over‑pants looks, grouped so you can pick online, local boutiques, or preloved/vintage options.

Online & local Y2K-focused boutiques

• Lewkin — Malaysian shop with dedicated Y2K dresses, pants and sets (good for ready‑to‑wear Y2K silhouettes). (lewkin.com)
• Udou — sells vintage / early‑2000s pieces and curated Y2K items (useful for authentic pieces like low‑rise jeans, mini skirts). (udoumy.com)
• MemoriesFashion and similar local indie shops — small Malaysian sellers carry halter tops, mini dresses and Y2K staples you can pair over trousers. (memoriesfashion.my)

Big local marketplaces (fast, lots of listings)

• Shopee Malaysia — huge selection of Y2K‑style skirts, tops, belts and baggy/low‑rise pants (search “Y2K”, “low rise”, “halter”, “mini skirt”). (shopee.com.my)
• Lazada Malaysia — plenty of Y2K / vintage‑style pants and dresses. (h5.lazada.com.my)
• Zalora, SHEIN Malaysia and Ubuy — useful for both trend pieces and imported Y2K styles. (zalora.com.my)

Preloved & vintage (best for authentic early‑2000s pieces)

• Carousell — large marketplace for preloved Y2K dresses, halter tops and baggy pants across Malaysia. (carousell.com.my)
• Amcorp Mall flea market / night‑markets and Kenanga Wholesale City — great places in KL to hunt vintage finds, bulk stalls and wholesale fashion lots (good if you’re hunting specific dress/jeans combos to layer). (app.wanderlog.com)
• Brick‑and‑mortar vintage shops in Bangsar / KL (e.g., Luxury Vintage and other secondhand boutiques) — often stock Y2K pieces in good condition. (my.99nearby.com)

Quick shopping tips for dress‑over‑pants styling

• Search targeted keywords: “Y2K”, “early 2000s”, “dress + pants”, “low‑rise jeans”, “baggy cargo”, “halter dress”, “mesh dress” or “mini dress + pants”.
• For true Y2K proportions look for low‑rise/straight or baggy pants + short/tight minis or slip dresses to layer over them.
• Check measurements and seller ratings (sizes run differently on local/overseas listings). Prioritize sellers with clear measurements and returns.
• If you want authentic vintage, focus on preloved sellers/Carousell and KL flea markets; if you want quick trends, use Shopee/Lazada/SHEIN or local Y2K boutiques.

If you’d like, I can:

• Search current listings in a specific city (KL, Penang, Johor) or for a specific size, or
• Pull a few live product listings for “dress over pants” combos in Malaysia.

(Selected sources: Lewkin, Udou, MemoriesFashion, Shopee, Lazada, Carousell and listings/market guides cited above.)