Great — if you want the Y2K “dress over pants” look in Australia, here are the best places to shop (both new and second‑hand), plus quick tips for finding the pieces and styling them.

Where to shop (new / high‑street)

• Princess Polly — AU‑based fast fashion brand that stocks Y2K pieces (mini slips, micro minis and layered pieces). Good for trend-led dress styles to layer over pants. (adelaidenow.com.au)
• Universal Store — carries street/Y2K‑inspired pieces and recent skirt‑over‑pants items. Good for casual/edgy takes. (adelaidenow.com.au)
• Target Australia (and Kmart) — budget options have recently carried skirt‑over‑pants or two‑piece overlay items (quick, inexpensive way to try the trend). (adelaidenow.com.au)
• ASOS / ASOS Marketplace — lots of Y2K minis, slip dresses and overlays; Marketplace has small independent sellers and reworked pieces. (ASOS widely referenced in coverage of the comeback). (adelaidenow.com.au)
• The Iconic / Showpo / Dotti — large Australian multi‑brand platforms and fast‑fashion retailers that often list Y2K silhouettes (slip dresses, mini skirts, low‑rise or flared pants to layer under). (en.wikipedia.org)

Where to shop (vintage / pre‑owned — best for authentic Y2K pieces)

• Depop — many Australian sellers list genuine late‑90s / early‑00s minis and slip dresses perfect for layering. Search “Y2K slip dress”, “micro mini”, “dress over jeans”. (reddit.com)
• Etsy — reworked and vintage slip dresses, corset minis and sheer overlays from independent sellers (good for unique or handmade takes). (bellaboheme.com.au)
• Local vintage stores & op shops — hunt in city vintage stores or local charity shops (you’ll often find authentic early‑2000s minis and dress pieces to layer).

What to search for (terms that return dress‑over‑pants pieces)

• “Slip dress”, “micro mini”, “baby doll mini”, “skirt overlay”, “skirt‑pant overlay”, “dress over jeans”, “Y2K slip dress”, “tulle slip dress”, “mesh dress”.

Styling & fit tips

• Pair a slip or mini dress with flared/bootcut jeans or low‑rise wide‑leg trousers for an authentic Y2K silhouette. Lightweight, slightly sheer dresses look great over straight denim or low‑rise pants. (jateng.idntimes.com)
• If you’re trying the trend for the first time, shop budget retailers (Target/Kmart) or fast‑fashion sites for inexpensive overlays before investing in vintage or pricier designer takes. (adelaidenow.com.au)

Shipping & returns (quick notes)

• Big AU retailers (Princess Polly, The Iconic, Universal Store, Target Australia, Showpo) ship domestically and have straightforward return/size guides — check each product page for measurements before ordering. (adelaidenow.com.au)

If you want, I can:

• Search current listings for “slip dress + jeans” or “skirt overlay” on several AU sites and pull specific product links (I’ll need to browse live listings).
• Or put together outfit examples (budget, mid, vintage) with prices.

Which would you prefer?