APEX Evolution Trunk by Kelly Slater

Regular Price $168
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Fit
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IN CM
Size
WaistHip
28XS
30-31"35-36"
2931-32"36-37"
30S32-33"37-38"
3133-34"38-39"
32M
34-35"39-40"
3335-36"40-41"
34L
36-37"41-42"
3537-38"
42-43"
36XL38-40"43-45"
3840-42"45-47"
40XXL42-44"47-49"
4244-46"49-51"
44XXXL46-48"51-53"
4648-50"53-55"
Size
WaistHip
28XS
76-7989-91
2979-8191-94
30S
81-8494-97
3184-8697-99
32M
86-8999-102
3389-91102-104
34L91-94104-107
3594-97107-109
36XL97-102109-114
38102-107114-119
40XXL107-112119-124
42112-117124-130
44XXXL117-122130-135
46122-127135-140

Hit up customercare@outerknown.com with any questions.

Three years in the making, this is the second generation of Kelly’s APEX Trunk. We took the most high-performance trunk ever made — and made it even better.

We delivered on Kelly’s precise design requests: better no-slip braided drawcords, an enhanced waistband that cinches without bunching, and reinforced ultrasonic-welded seams where it matters most.

We teamed up with our friends at Bureo for their matchless NetPlus® material made from recycled fishing nets. This yielded a truly responsibly made trunk with a little more substance than the first APEX—without compromising any performance qualities.
Part of Kelly Slater’s Signature Collection, this style features the iconic OK KS Portal logo in Ocean Blue at the back pocket and Ocean Blue OK Dot and Wordmark branding detail.

Crafted from 90% NetPlus® Recycled Nylon, 10% Spandex.

Performance-centered design details throughout:
  • Pitched forward side seams with vents for easier fit on the board.
  • Unique arc and tangent shaped back pocket featuring a key loop and eleven laser cut drainage holes, one for each of Kelly's world titles.
  • Engineered side seam taping.
  • Soft touch interior waistband.
  • Gusseted fly.
  • Soft touch triangles at inner thigh touch points.
  • Unique rubberized drawstring.

Looks Great With

Sun Shirt

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APEX Evolution Trunk by Kelly Slater

APEX Evolution Trunk by Kelly Slater

Regular Price $168

Overall rating: 4.6666665 / 5 from 111 reviews.

AI Generated Review Summary

The APEX Evolution Trunk by Kelly Slater is highly praised for its perfect length, exceptional fit, and fantastic feel. Made from a blend of recycled nylon and spandex, it offers a soft yet supportive material with the right amount of stretch. Customers highly recommend these trunks for their performance-centered design and responsible manufacturing.

Summary topics

  • Length: 6%
  • Fit: 34%
  • Material: 15%
  • Feel: 16%
  • Recommendation: 29%

Review topics: ["size","fit","length","shorts","color","fabric","material","trunks","design","pockets","quality","pair","look","feel","stretch","rash","pattern","cut","customer service","price","seams","durability","version","drying","waistband","improvements","update","boardies","policy"].

Review highlights

  • "I like the new length and material great to surf in and run, good all round board shorts will get more."Damian M.
  • "Perfect fit, right length, dry fast and look great!!"Russell P.
  • "I love the look and fit."Daniel P.

Reviews

Seam failure issue

"They feel fantastic and love them. Unfortunately I’ve had 2 pairs. First pair seem separated in under 1 month. They were great, sent pictures in and they replaced with gift card. Bought a 2nd pair with new design and unfortunately butt seem separated in 3 weeks. Can’t ware those. Very sad because they are amazing, very hesitant to try again."

Darren (2/5)

Hands down best surf trunks

"Hands down best surf trunks I’ve ever had. I like them way more than the 1st gen apex, the fit is even better and the material feels like it’s going to last. Also knowing that my money is going towards cleaning up and recycling fish nets, I’ll pay the extra for that alone; but the fact that they are also performance wise the best I’ve ever had, these are no brainer."

juan U. (5/5)

Poor Quality

"The glue that holds the zipper to the short seperated after a few surfs. The OK team sent a replacement and after a few surfs the same malfunction. Liked the quick try and very comfortable but these quality issues are unacceptable for a short that cost double a normal surf trunk. Very disappointing there QA is shipping defective shorts out."

Bryan P. (1/5)

"You sent my order to the wrong address and dont have clue why you sent it to Granbary Texas , 3 hours from where I live. It cost me $70 to ship it to me . Please refund me my shipping cost of $70 file:///var/mobile/Library/SMS/Attachments/eb/11/32608E00-AB8A-4BE1-859D-B8F9AF39BC2F/IMG_0138.jpeg Bobby Moses"

Robert (1/5)

I have owned a number

"I have owned a number of versions of these OK trunks. Early ones had trouble with seam welds (OK did great on replacements). This pair is the best performing yet! Surfed in them for 2 weeks in Indo. Zero rash, quick drying, flexible and of course fashionable."

Philip J. (5/5)

"Best board shorts around. They are light stretch and are very well-made. A bit on the expensive side, but well worth there. In my opinion."

Stephen (5/5)

bought a couple of pairs

"bought a couple of pairs of these for the summer, perfect fit and material for pool or ocean."

HARRY B. (5/5)

"i have these in 3 colors now, dont wear anything else to the beach."

Harry (5/5)

Fantastic shorts. They dry very

"Fantastic shorts. They dry very quickly."

John P. (5/5)

I like some of the

"I like some of the updates (drawstring, waist enclosure, new colorways), but two notes: either make them a bit longer or have a longer length version for those of us who wish for more thigh coverage while sitting in the lineup; material is rougher and less supple than the previous version. Also, the website suggests ordering a size up from the previous version, but I found that they fit the same and had to exchange for my original size."

Daniel M. (4/5)

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