(209 Items)

Men's Swim Trunks

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Diamond Cross Ranch
Bunk 6" Swim Trunks
price reduced to $54.00
from $60.00
 10% Off Savings 
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Pacsun
Tropical Villa 4" Swim Trunks
price reduced to $17.98
from $44.95
 60% Off Savings 
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Pacsun
Black Solid Collegiate 6.5" Swim Trunks
price reduced to $27.96
from $39.95
 30% Off Savings 
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Pacsun
Ranch 4.5" Volley Swim Trunks
price reduced to $22.47
from $44.95
 50% Off Savings 
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Pacsun
Dilated Applique 4.5" Swim Trunks
price reduced to $24.97
from $49.95
 50% Off Savings 
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Pacsun
Iron Flames 6.5" Volley Swim Trunks
price reduced to $26.97
from $44.95
 40% Off Savings 
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Pacsun
Blue Collegiate 6.5'' Swim Trunks
price reduced to $23.97
from $39.95
 40% Off Savings 
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Pacsun
Lavender Collegiate 6.5'' Swim Trunks
price reduced to $23.97
from $39.95
 40% Off Savings 
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Pacsun
Black Blotch Bandana Eco 4.5" Swim Trunks
price reduced to $22.47
from $44.95
 50% Off Savings 
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Pacsun
Green Solid Collegiate 6.5" Swim Trunks
price reduced to $15.98
from $39.95
 60% Off Savings 
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Pacsun
Brick Red Collegiate 6.5" Swim Trunks
price reduced to $15.98
from $39.95
 60% Off Savings 
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Pacsun
Brown Collegiate 6.5" Swim Trunks
price reduced to $23.97
from $39.95
 40% Off Savings 

Men’s Swim Trunks

Pacsun men’s swim trunks are your go-to for warm-weather comfort, quick-dry function, and standout summer style. Whether you’re hitting the waves, lounging poolside, or heading from beach to street, these trunks keep your fit light, easy, and ready for anything.

Our collection features a range of lengths and fits—from retro-inspired 5" styles to longer, more relaxed silhouettes. With elastic waistbands, mesh linings, and functional drawstrings, Pacsun swim trunks are built for comfort and performance. Choose from bold graphics, tropical prints, color-blocked designs, and everyday neutrals to match your vibe.

Styling men’s swim trunks goes beyond the water. Pair them with a ribbed tank, oversized graphic tee, or short sleeve button-up for a clean beach-to-street look. Layer with a camp shirt or hoodie when the sun sets, and finish with slides or low-top sneakers. Add a baseball cap or bucket hat to top it off.

Pacsun swim trunks are made for more than just swimming—they’re an essential part of your summer rotation. Lightweight, breathable, and easy to wear all day, they’re built to move with you wherever the season takes you.

So if you’re looking to refresh your beachwear or find trunks that fit your everyday summer vibe, Pacsun men’s swim trunks have you covered. Shop the latest styles now and dive into your next favorite pair.