Swimwear in Bangkok & Across Thailand: Where to Buy + Online Delivery (2025 Guide)

Introduction

From Bangkok’s rooftop pools to Phuket’s beach clubs and Krabi’s cliffs, Thailand is built for swim days. If you’re searching for swimwear in Bangkok or bikini shops across Thailand, this guide shows you the best ways to shop — online for convenience, luxury malls for quick try-ons, and island boutiques for unique finds.

At PASSA Beachwear, we deliver Thai-silk inspired swimwear nationwide, making it easy for locals and travelers to shop luxury pieces with cultural depth.

3 Smart Ways to Shop Swimwear in Thailand

 

1) Online Stores (Fastest & Widest Selection)

Best for: full size runs, new arrivals, exclusive drops.

Why PASSA online: complete Thai-silk inspired collection, detailed photos, sizing guidance, and nationwide delivery.

Pro tip: if you’re between sizes, order two sizes (tops/bottoms) — keep the one that fits best.

👉 Shop All PASSA → passabeachwear.com/collections/all

2) Bangkok Luxury Malls (Try-On Experience)

Siam Paragon & Central Embassy: curated premium edits of international and Thai swimwear.

When to go: weekdays = quieter fitting rooms.

Fit check: move, sit, and stretch in the fitting room — tropical heat changes how fabrics feel after hours of wear.

3) Island Boutiques (Phuket, Samui, Krabi)

Phuket (Kata, Surin): resort clubs → metallics, statement one-pieces, bold silk-inspired prints.

Samui & Koh Tao: active racks → rash-guards and sport bikinis for dives and snorkeling.

Krabi & Railay: scenic cliff backdrops → bold prints shine in photos.

Fit & Sizing Cheat Sheet (Thailand Edition)

Measure properly: bust, underbust, waist, hips.

Top tips:

• Fuller bust → halter, underwire, wide bands.
• Smaller bust → triangle, bandeau, plunge.

Bottom tips:

• High-waist → flattering in photos.
• String/tie sides → adjustable fit.

Thailand reality: humidity + heat affect elastic feel — always test movement.

Fabrics, Lining & UPF for the Tropics

Base fabrics: nylon/polyamide + elastane for stretch.

Lining: double linings = smoother & less transparent.

UPF 50+: blocks ~98% UV → essential in Thailand.

Care: rinse after every swim, dry flat in shade, avoid wringing.

Swimwear Styles to Try in Thailand

• Triangle/string: tan-friendly → Samui beaches.

• Bandeau: sleek for Bangkok rooftop pools.

• High-waist: photogenic in Phuket clubs.

• Halter/underwire: secure lift for boat days.

• Rash-guard: stylish sun protection for snorkeling.

• Cut-out/plunge: dramatic sunset photos.

• PASSA signature: Thai-silk motifs = contour + elongation.

📦 Delivery & Travel Tips

• Before a trip: order 1–2 weeks in advance.

• Packing light: 2 bikinis (sport + statement), 1 one-piece, 1 rash-guard, 1–2 silk cover-ups.

• Gift idea: PASSA e-gift cards — safe for sizing.

🧳 One-Week Packing List (Thailand Edition)

• 2 bikinis (sport + statement)

• 1 one-piece (evening pool or resort dinner)

• Long-sleeve rash-guard (UPF 50+)

• 1–2 silk cover-ups

• Slides + dressy sandals

• Sunglasses + hat

• Sarong/wrap skirt

❓ FAQ — Swimwear Shopping in Thailand

1 - Where is the best place to buy swimwear in Bangkok?
Luxury malls like Siam Paragon and Central Embassy, or online for full collections.

2- Is UPF 50+ worth it?
Yes — fabric-level sun protection blocks ~98% UV, ideal in Thai sun.

3 - What’s the best for snorkeling?
A long-sleeve rash-guard set or secure sport bikini.

4 - What if I’m between sizes online?
Order two sizes, keep hygiene liners intact, return the one that doesn’t fit.

5 - Why PASSA?
PASSA is the first & only brand merging Thai silk motifs with modern luxury swimwear.