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Man in a blue zip-front jacket over a white shirt standing against a white garage door.

NEW ARRIVALS
Three people wearing sunglasses and color-block boardshorts in front of a chain-link fence.

Y2K DROP
Man adjusting the hood of a brown zip-front Katin windbreaker beside a rocky wall.

OUT THERE GEAR (OTG)
Blue ribbed Katin sweater draped over a cream canvas bag and striped towel on the sand.

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Man wearing an olive corduroy jacket with a white fleece collar while holding a surfboard at the beach.

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Man in a gray crewneck sweater, black beanie, and dark pants sitting beside wood siding.

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Man wearing a gray-and-navy plaid button-up shirt with brown pants beside a cream wall.

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Man wearing a gray Katin Classics palm-tree hoodie and black beanie against a beige wall.

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Man in a cream and brown striped long-sleeve polo beside a mustard wall and turquoise door.

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Brown cuffed pants worn barefoot on the sand while carrying a surfboard, wetsuit, and sandals.

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Light-wash jeans and flip-flops worn by a man sitting on a bench in a beige jacket.

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Man in olive shorts and a light blue graphic T-shirt holding a tote bag beside a stone wall.

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Surfer in a yellow T-shirt and dark boardshorts carving a turquoise wave.

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Man wearing teal drawstring volley shorts while holding a cream corded telephone indoors.

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Cream corduroy cap with a navy brim and embroidered palm design resting on driftwood.

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Navy ribbed beanie with a red-and-cream Katin patch resting on a tan canvas bag.

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White Katin crew socks worn with black canvas sneakers on a sandy path.

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Man in dark plaid carrying a white surfboard, wetsuit, and light blue palm-patterned towel on a wooded path.

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Close-up inside a curling turquoise wave with white spray and a glimpse of a sandy beach.

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Featured products

Katin Cord Local Short in Brown 16 wale corduroy, flat, front #color_brown
CORD LOCAL SHORT
Sale price$ 69.00
Color+7
Katin Base Tee in Vintage White jersey, flat, front #color_vintage white
BASE TEE
Sale price$ 35.00
Color+11
Katin Isaiah Local Short in Light Gray, flat, front #color_light gray
ISAIAH LOCAL SHORT
Sale price$ 69.00
Color+1
Katin Patio Short in Moss, view 1 #color_moss
PATIO SHORT
Sale price$ 59.00
Color+3
Katin Flow Surf Trunk in Navy, flat, front #color_navy
Katin Flow Surf Trunk in Navy, on model, front #color_navy
Katin Flow Surf Trunk in Navy, on model, side #color_navy
Katin Flow Surf Trunk in Navy, on model, back #color_navy
Katin Flow Surf Trunk in Navy, detail 1 #color_navy
Katin Flow Surf Trunk in Navy, detail 2 #color_navy
Katin Flow Surf Trunk in Navy, detail 3 #color_navy
Katin Flow Surf Trunk in Navy, flat, back #color_navy

FLOW SURF TRUNK

Sale price$ 75.00
COLOR: Navy
SIZE: 29
Katin Men's - Bottoms Fit Chart


SIZE

WAIST

HIP
28 28" 35"
29 29" 36"
30 30" 37"
31 31" 38"
32 32" 39"
33 33" 40"
34 34" 41"
36 36" 43"
38 38" 44"
40 40" 46"

HOW TO MEASURE

Size Chart for men's bottoms

  • CHEST: Measure under your arms, around the fullest part of your chest and back.

  • WAIST: Measure around the narrowest part of your torso at your waist.

  • HIP: Measure around the fullest part of your hips and rear.

*Please note this size chart serves as a general guide for helping you find your size for Katin. All conversions are approximate and measurements may vary by item or personal preference of fit.

OUT OF STOCK
DESCRIPTION

Since 1954, Katin has built products guided by three principles: quality, durability, and good looks. The Reissue Series brings archival designs back using original patterns, era-specific fits, and the details that defined them. Authentic Katin, rebuilt with purpose.

The Flow Surf Trunk is part of the first Reissue installment, featuring a 21" outseam and 11" inseam with a Y2K-inspired baggy fit. Built from 4-way stretch recycled polyester with DWR coating for added function and durability.

Past eras. Present craft. Future classics.

Fabric & Details

  • 90% Recycled Polyester, 10% Spandex 4-Way Stretch with DWR
  • Y2K Baggy Fit
  • 21" Outseam
  • 11" Inseam
CARE GUIDE
  • Machine Wash Cold
  • Non Chlorine Bleach
  • Tumble Dry Low
  • Iron, Low Heat
SHIPPING & DELIVERY

Free standard shipping is available on orders of $75 or more shipped within the contiguous United States.

Orders are generally processed the next business day after they’re placed.

Review the full shipping policy
Returns & Exchanges

You have 30 days from delivery to return or exchange items purchased on katinusa.com. Items must be unworn and in original condition with tags attached.

Exchanges and store credit returns ship free. An $8.00 return shipping fee is deducted from refunds.

Final Sale items aren’t eligible for return or exchange.

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