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Bring the summer energy with Mosmann Australia’s bold and beach ready swim shorts made for men, boys, and the coolest father–son duos. From backyard pool parties to tropical getaways, our quick-dry, 4-way stretch fabric keeps you comfy, dry, and ready for anything. Boys get our signature sunglass zipper puller, dads get the modern fit they love and together, you’re the best-dressed pair at the beach. Shop them solo or grab a matching set for double the fun and all the compliments.

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62 products

Mens Swim Shorts - KasbahMens Swim Shorts - Kasbah
Mens Swim Shorts - Kasbah Sale price$69.00
Blue Boy's Swim ShortBlue Boy's Swim Short Red lace
Boy's Swim Shorts - Tuxx Jr. Sale price$43.00
Mens Swim Shorts - ChompRed White stripe Men Swim Short
Mens Swim Shorts - Chomp Sale price$69.00
Mens Swim Shorts - Hamilton II4 way stretch Green Navy Men's Swim Short
Mens Swim Shorts - Hamilton II Sale price$69.00
Black Navy Boy's Swim ShortBlack Navy Boy's Swim Short Yellow Lace
Boy's Tailored Swim Shorts-ToucanLoungeJr. Sale price$43.00
Mens Swim Shorts - The Surfing BuddhaBack zipper pocket Green Navy men's Swim Shorts
Mens Swim Shorts - The Surfing Buddha Sale price$69.00
Fine Mesh Blue men's Swim Short 4 way stretch blue men's Swim Shorts
Mens Swim Shorts - X-Apeel Sale price$69.00
Mens Swim Shorts - Waves of BlueBlue wave men's Swimwear Shorts
Mens Swim Shorts - Waves of Blue Sale price$69.00

You know that feeling when everything just fits - your mood, your vibe, your day? That's what Mosmann underwear is made for.

From the first wear, you'll feel the difference - soft bamboo that moves with you, not against you. No distractions. No gimmicks.
Just comfort that gives you one less thing to think about, and a little more confidence to carry through your day. Because when the foundation's right, the rest falls into place.

Save $13.00Green Black Boy's Swim ShortGreen Black Boy's Swim Short Surfing Print
Boy's Swim Shorts - Surfing Buddha Jr. BLU/GRN Sale price$30.00 Regular price$43.00
Save $13.00Boy's Swim Shorts - Palm Dreams Jr.Boy's Swim Shorts - Palm Dreams Jr.
Boy's Swim Shorts - Palm Dreams Jr. Sale price$30.00 Regular price$43.00
Boy's Tailored Swim Shorts - Coco LocoLight Blue Boy's Swim Short Coconut Print
Boy's Tailored Swim Shorts - Coco Loco Sale price$43.00
Men's Resort Swim Shorts - MosaicMen's Resort Swim Shorts - Mosaic
Men's Resort Swim Shorts - Mosaic Sale price$69.00
Mens Swim Shorts - Hamilton4 way Stretch blue Men's Swim short
Mens Swim Shorts - Hamilton Sale price$69.00
Mens Swim Shorts - X-Apeel (Yellow)Banana Print Yellow Men's Summer Shorts
Mens Swim Shorts - X-Apeel (Yellow) Sale price$69.00
Men's Resort Swim Shorts - Ola (Blue)Men's Resort Swim Shorts - Ola (Blue)
Men's Resort Swim Shorts - Ola (Blue) Sale price$69.00
Men's Resort Swim Shorts - ChillyMen's Resort Swim Shorts - Chilly
Men's Resort Swim Shorts - Chilly Sale price$69.00
Men's Resort Swim Shorts - ChompMen's Resort Swim Shorts - Chomp
Men's Resort Swim Shorts - Chomp Sale price$69.00
Men's Resort Swim Shorts - Sunset SerenityMen's Resort Swim Shorts - Sunset Serenity
Men's Resort Swim Shorts - Sunset Serenity Sale price$69.00
Men's Resort Swim Shorts - La Banana (Navy)Men's Resort Swim Shorts - La Banana (Navy)
Men's Resort Swim Shorts - La Banana (Navy) Sale price$69.00
Men's Resort Swim Shorts - Las PalmasMen's Resort Swim Shorts - Las Palmas
Men's Resort Swim Shorts - Las Palmas Sale price$69.00
Sold outDark Blue men's Swim ShortsToucan Print Dark Blue men's Swim Shorts
Mens Swim Shorts - Toucan Lounge Sale price$69.00
Boys Resort Swim Shorts - Hamilton II Jr.Boys Resort Swim Shorts - Hamilton II Jr.
Boys Resort Swim Shorts - Hamilton II Jr. Sale price$43.00
Mens Swim Shorts - Cabana BoyLight-blue-swim-shorts-with-pool-print_bbfbcf7b-7c05-490b-9fad-fe6acc7ae3e2.jpg
Mens Swim Shorts - Cabana Boy Sale price$69.00
Boy's Swim Shorts - El Nido Jr.Boy's Swim Shorts - El Nido Jr.
Boy's Swim Shorts - El Nido Jr. Sale price$43.00
Men's Swim Shorts  - El NidoMen's Swim Shorts  - El Nido
Men's Swim Shorts - El Nido Sale price$69.00
Boy's Swim Short Blue PatternCabana Boy Swim Shorts Jr.jpg
Boy's Tailored Swim Shorts - Cabana Boy Sale price$43.00
Boy's Swim Shorts - El Nido Jr.Boy's Swim Shorts - El Nido Jr.
Boy's Swim Shorts - El Nido Jr. Sale price$43.00
Men's Swim Shorts - CasablancaMen's Swim Shorts - Casablanca
Men's Swim Shorts - Casablanca Sale price$69.00
Men's Swim Shorts - SonoranMen's Swim Shorts - Sonoran
Men's Swim Shorts - Sonoran Sale price$69.00
Boy's Swim Shorts - La Banana Jr. (Light Blue)Boy's Swim Shorts - La Banana Jr. (Light Blue)
Boy's Swim Shorts - La Banana Jr. (Light Blue) Sale price$43.00
Boy's Swim Shorts - Sonoran Jr.Boy's Swim Shorts - Sonoran Jr.
Boy's Swim Shorts - Sonoran Jr. Sale price$43.00
Men's Swim Shorts - DahabMen's Swim Shorts - Dahab
Men's Swim Shorts - Dahab Sale price$69.00
Boy's Swim Shorts - La Banana Jr. (Navy)Boy's Swim Shorts - La Banana Jr. (Navy)
Boy's Swim Shorts - La Banana Jr. (Navy) Sale price$43.00
Father and Son Matching swim shorts - Palm DreamsFather and Son Matching swim shorts - Palm Dreams
Men's Resort Swim Shorts - La Banana (Light Blue)Men's Resort Swim Shorts - La Banana (Light Blue)
Men's Resort Swim Shorts - La Banana (Light Blue) Sale price$69.00
Mens Swim Shorts - Melon BrandoFine Mesh Blue watermelon Print Men's Swim Short
Mens Swim Shorts - Melon Brando Sale price$69.00
Men's Swim Shorts - El NidoMen's Swim Shorts - El Nido
Men's Swim Shorts - El Nido Sale price$69.00
Men's Swim Shorts - SalvadorMen's Swim Shorts - Salvador
Men's Swim Shorts - Salvador Sale price$69.00
Men's Swim Shorts - El NidoMen's Swim Shorts - El Nido
Men's Swim Shorts - El Nido Sale price$69.00
Boys Resort Swim Shorts - Hamilton Jr.Boys Resort Swim Shorts - Hamilton Jr.
Boys Resort Swim Shorts - Hamilton Jr. Sale price$43.00
Father and Son Matching swim shorts - Hamilton (Green)Father and Son Matching swim shorts - Hamilton (Green)
Save $13.00Boy's Swim Shorts - Ola Jr.Boy's Swim Shorts - Ola Jr.
Boy's Swim Shorts - Ola Jr. Sale price$30.00 Regular price$43.00
Boy's Swim Shorts - Sonoran Jr.Boy's Swim Shorts - Sonoran Jr.
Boy's Swim Shorts - Sonoran Jr. Sale price$43.00
Boy's Swim Shorts - Margarita Jr. (Black)Boy's Swim Shorts - Margarita Jr. (Black)
Boy's Swim Shorts - Margarita Jr. (Black) Sale price$43.00
Dad and son matching swim shorts - Cabanacabana-set_af377b86-5bf4-4714-a243-4d41392e72f0.jpg
Save $13.00Kasbah Jr Front Swim Shorts.jpgIMG_2926.JPG
Tailored Swim Shorts - Kasbah Jr. Sale price$30.00 Regular price$43.00
Men's Resort Swim Shorts - Ola (Green)Men's Resort Swim Shorts - Ola (Green)
Men's Resort Swim Shorts - Ola (Green) Sale price$69.00
Men's Swim Shorts - SonoranMen's Swim Shorts - Sonoran
Men's Swim Shorts - Sonoran Sale price$69.00