Underwear Buying Guide: How to Choose + Recommended Brands
Shopping for underwear might seem simple, but with so many styles, fabrics, and brands out there, it’s easy to get overwhelmed. Whether you want everyday comfort, something sexy, or a sustainable swap, this guide will help you pick the best underwear for your body and lifestyle — plus, we’ve included top product recommendations you can trust.
🛍️ Step 1: Know Your Needs
Ask yourself:
✔ Daily wear or special occasions?
✔ Hot or cold climate?
✔ Sensitive skin concerns?
✔ Do you care about eco-friendly materials?
Your answers will help guide you toward the right material and style.
🩲 Step 2: Choose the Right Material
| Material | Best For | Avoid If |
|---|---|---|
| Cotton | Daily wear, sensitive skin, breathability | You want a sleek or ultra-stretchy fit |
| Modal | Silky softness, light luxury, moisture-wicking | You need maximum stretch or athletic support |
| Bamboo | Eco-friendly, antibacterial, humid climates | You’re on a tight budget (bamboo can cost more) |
| Nylon/Polyester | Sleek fit, lace details, workout underwear | You prioritize breathability over smooth texture |
| Spandex Blends | Shapewear, sportswear, snug-fitting pieces | You want natural, breathable fabrics |
🌟 Recommended Eco-Friendly Underwear Brands
1️⃣ NYX Collection
✅ Best For: Period underwear, reusable & eco-friendly solutions
✅ Material: Organic cotton + leakproof layers
✅ Why We Love It: Reduces disposable waste, body-positive sizing, stylish designs
Top Pick: NYX Leakproof High-Waist Briefs — perfect for period days or light bladder leaks, replacing tampons or pads.
2️⃣ Organic Basics
✅ Best For: Minimalist everyday basics, organic fabrics
✅ Material: Organic cotton, TENCEL™, recycled nylon
✅ Why We Love It: Ethical factories, sustainability reports, ultra-soft feel
Top Pick: Organic Cotton Briefs — classic, breathable, and made with certified organic fibers.
3️⃣ Pact
✅ Best For: Affordable, sustainable underwear
✅ Material: GOTS-certified organic cotton
✅ Why We Love It: Fair Trade Certified™, budget-friendly bundles, wide range of sizes
Top Pick: Pact Everyday Bikini 6-Pack — soft, durable cotton in versatile colors at a great price.
4️⃣ Boody
✅ Best For: Bamboo basics, sensitive skin
✅ Material: Bamboo viscose
✅ Why We Love It: Naturally antibacterial, moisture-wicking, super soft
Top Pick: Boody Women’s Full Briefs — ideal for those who want extra coverage and cloud-like softness.
5️⃣ Knickey
♻️ knickey.com
✅ Best For: Organic cotton lovers, recycling old underwear
✅ Material: GOTS-certified organic cotton
✅ Why We Love It: Underwear recycling program, chic minimal designs, eco-packaging
Top Pick: Knickey Mid-Rise Briefs — timeless, flattering, and good for the planet.
🏋️ Bonus: Best Underwear for Activewear
If you need performance underwear for workouts or sports, look for brands like:
✔ Under Armour (synthetic, moisture-wicking)
✔ Girlfriend Collective (recycled materials, eco-friendly activewear)
✔ Patagonia (Fair Trade, recycled content)
💡 Final Tips Before You Buy
✅ Read size guides — Every brand fits a little differently.
✅ Start with one or two pairs — Test comfort before buying a whole pack.
✅ Care properly — Eco fabrics like bamboo and organic cotton last longer when washed gently.
🌸 Summary
Switching to high-quality, eco-friendly underwear is one of the simplest ways to make your wardrobe more sustainable — and more comfortable! By choosing the right material, supporting ethical brands, and buying thoughtfully, you can feel good from the inside out.
Want links to specific product pages or discounts? Let me know, and I can help build a shopping list or discount round-up for you! 🌿✨