The Coastal Grandmother Capsule Wardrobe: 10 Essentials

If you’ve ever dreamed of living like a Nancy Meyers protagonist—sipping tea on a sunlit porch, strolling farmers’ markets in effortlessly chic outfits, or whipping up a garden-fresh meal in a perfectly curated kitchen—then the coastal grandmother aesthetic is calling your name. This style embodies relaxed elegance, timeless fashion, and a touch of old-money minimalism.

But to truly master the look, you need the right wardrobe foundation. A coastal grandmother capsule wardrobe is all about quality over quantity—investment pieces that can be mixed, matched, and worn season after season. Here are the 10 essentials to channel your inner Diane Keaton.

1. The Perfect Striped Sweater

Nothing says coastal ease like a classic striped sweater. Opt for a slightly oversized fit in natural fibers like cotton or cashmere. Wear it over linen pants or drape it over your shoulders for that effortlessly preppy touch.

• Try: La Ligne "Mini Marina" Sweater or Everlane’s Organic Cotton Striped Sweater

• For a more affordable option, try this Amazon favorite: Zesica Striped Sweater

2. Crisp White Button-Down

A staple of any elegant wardrobe, the white button-down is versatile and polished. Wear it with trousers for a put-together look or over a swimsuit as a beach cover-up.

• Try: Frank & Eileen "Barry" Button-Up or J.Crew’s Relaxed Linen Shirt

• For a more affordable option, try this Amazon favorite: Hotouch Oversized Button Down

3. Linen Pants

Breathable, timeless, and endlessly wearable, linen pants are non-negotiable for the coastal grandmother aesthetic. Choose a wide-leg silhouette in neutral tones like white, beige, or soft gray.

• Try: Eileen Fisher’s Wide-Leg Linen Pant or Reformation’s Mason Pant

• For a more affordable option, try this Amazon favorite: Anrabess Women’s Linen Pants

4. Classic Trench Coat

A lightweight trench adds just the right amount of structure to breezy coastal outfits. It’s the perfect layering piece for misty mornings or evening walks by the shore.

• Try: Burberry’s Kensington Trench or Everlane’s Drape Trench Coat

• For a more affordable option, try this Amazon favorite: The Drop Trench Coat

5. Oversized Sunglasses

Think Meryl Streep in It’s Complicated—oversized frames that add instant sophistication and a little bit of mystery.

• Try: Celine’s Triomphe Sunglasses or Le Specs’ Air Heart Shades

• For a more affordable option, try this Amazon favorite: Sojos Oversized Metal Glasses

6. A Cozy Cashmere Wrap

A cashmere wrap or oversized scarf is a must-have for chilly nights and impromptu seaside picnics. Wrap yourself in warmth and luxury with a neutral-toned, ultra-soft piece.

• Try: Jenni Kayne’s Cashmere Cocoon Wrap or White + Warren’s Travel Wrap

• For a more affordable option, try this Amazon favorite: Velanio Cashmere Wrap

7. A Well-Tailored Blazer

The right blazer takes any outfit from casual to refined. Look for a relaxed fit in breathable fabrics like linen or cotton for an elevated, effortless feel.

• Try: Ralph Lauren’s Linen-Blend Blazer or Aritzia’s Babaton Agency Blazer

• For a more affordable option, try this Amazon favorite: Happy Sailed Women’s Blazer

8. Breezy Midi Dress

Every coastal grandmother needs a timeless midi dress—flowy, feminine, and comfortable enough for a long day of leisurely activities.

• Try: Doen’s Midi Dresses or Reformation’s Floral Wrap Dresses

• For a more affordable option, try this Amazon favorite: PrettyGarden Women’s Wrap Dress

9. Leather Sandals or Loafers

A pair of high-quality leather sandals or loafers completes the capsule wardrobe. Choose something understated yet elegant, perfect for anything from running errands to hosting a garden brunch.

• Try: The Row’s Ginza Sandals or Gucci’s Horsebit Loafers

• For a more affordable option, try this Amazon favorite: Cushionaire Leather Sandals

10. A Straw Tote

A classic straw tote ties everything together. Whether you’re heading to the farmers’ market or packing a book and blanket for a beachside afternoon, this is the ultimate accessory.

• Try: Loewe’s Raffia Basket Bag or Sezane’s Gaby Straw Bag

• For a more affordable option, try this Amazon favorite: Pocadri Women’s Straw Tote

Final Thoughts

The coastal grandmother capsule wardrobe is about intention—choosing pieces that feel timeless, elegant, and effortlessly wearable. Investing in these 10 essentials means you’ll always have something perfect to wear, no matter the occasion.

So pour yourself an iced matcha, light a linen-scented candle, and embrace the coastal grandmother way of dressing. Trust us, Diane Keaton would approve.