90% matchUntuckit
Untuckit closely matches Southern Marsh in style, silhouette, fit, palette, materials, and price segment. Both brands emphasize a relaxed and tailored preppy style with similar material choices and pricing.
Southern Marsh
StyleUrban prep / IvyAthleisure / SportswearWorkwear / Heritage
Known forTopsT-shirts & graphic tees
Southern Marsh is a Baton Rouge, Louisiana apparel company founded by LSU students Matthew Valiollahi and Stephen Smith, selling Southern-lifestyle casualwear marked by its flying-duck logo. The range covers cotton and Seawash graphic tees, performance and cotton polos, oxford button-downs, quarter-zip pullovers, shorts, swim trunks, hats and belts for men, women and youth. The brand remains privately held and founder-run, ships more than a million pieces a year, and sells through its website, four company-owned stores including Baton Rouge, and independent boutiques and campus shops across the South.
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How Southern Marsh fits
| Category | Runs | Shape | Length | Size advice | Confidence |
|---|---|---|---|---|---|
| Hoodies & sweatshirts | runs large | roomy, casual pullover shape built for layering over a polo or oxford | regular, hits at the hip | Quarter-zips and hooded pullovers are widely described as oversized, so sizing down usually gives a cleaner fit. | medium |
| Shirts & overshirts | slightly large | classic fit oxfords and polos with a fuller chest and waist, not tapered | regular, long enough to stay tucked | Order your normal size for a traditional look, or drop a size if you prefer the shirt closer to the body. | medium |
| T-shirts & graphic tees | runs large | relaxed, straight-cut body with a slightly wide chest and sleeve | regular to slightly long, easy to tuck | Size down for a modern fit; keep your usual size if you like a loose tee or expect a bit of shrinkage from the garment-dyed Seawash styles. | medium |
Does Southern Marsh run big or small?
Southern Marsh runs large. Most shoppers do best sizing down one from their usual tee/pullover size unless they want a loose, tucked-in Southern-prep look. Southern Marsh cuts in the traditional Southern-prep style, so tees, polos and pullovers typically feel roomier and boxier than modern slim-fit brands, with many buyers reporting they could have gone a size smaller.
How does Southern Marsh fit?
Southern Marsh cuts in the traditional Southern-prep style, so tees, polos and pullovers typically feel roomier and boxier than modern slim-fit brands, with many buyers reporting they could have gone a size smaller. Overall shape: classic/relaxed, roomy through the chest and body rather than slim.
How do Southern Marsh hoodies & sweatshirts fit?
Southern Marsh hoodies & sweatshirts runs large. Quarter-zips and hooded pullovers are widely described as oversized, so sizing down usually gives a cleaner fit. Shape: roomy, casual pullover shape built for layering over a polo or oxford.
How do Southern Marsh shirts & overshirts fit?
Southern Marsh shirts & overshirts fits slightly large. Order your normal size for a traditional look, or drop a size if you prefer the shirt closer to the body. Shape: classic fit oxfords and polos with a fuller chest and waist, not tapered.
How do Southern Marsh t-shirts & graphic tees fit?
Southern Marsh t-shirts & graphic tees runs large. Size down for a modern fit; keep your usual size if you like a loose tee or expect a bit of shrinkage from the garment-dyed Seawash styles. Shape: relaxed, straight-cut body with a slightly wide chest and sleeve.
Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.
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