index

33 products

  • Brad's Blue Trunk Brad's Blue Trunk
    Quickshop Elevate your men's underwear collection with Brad's Blue Trunk, a stylish and...
    Brad's Blue Trunk
    Regular price $25.00
    • Brad's Blue Trunk
  • Evan Trunk Evan Trunk
    Quickshop Elevate your beach style with the Evan Trunk, a versatile and captivating...
    Evan Trunk
    Regular price $25.00
    • Evan Trunk
    • Evan Trunk
    • Evan Trunk
  • Allen Square Trunk Allen Square Trunk
    Quickshop Introducing the Allen Square Trunk, the ultimate men's swimwear solution from Undergear...
    Allen Square Trunk
    Regular price $25.00
    • Allen Square Trunk
    • Allen Square Trunk
  • Dean Trunk Dean Trunk
    Quickshop Elevate your beach style with the Dean Trunk, the must-have men's swimwear...
    Dean Trunk
    Regular price $25.00
  • Hot Yoga Short
    Quickshop Elevate your hot yoga practice with the Hot Yoga Short from Undergear...
    Hot Yoga Short
    On sale from $25.50
    • Hot Yoga Short
  • Black Yoga Shorts
    Quickshop Unleash your full potential on the mat with our Black Yoga Shorts,...
    Black Yoga Shorts
    On sale from $25.50
    • Black Yoga Shorts
  • Undergear Fizx Swim Bikini with Removable Push Pad Undergear Fizx Swim Bikini with Removable Push Pad
    Quickshop Feel at ease and assured in our Fizx Swim Bikini with removable...
  • Fizx Buckle Swim Bikini Brief Fizx Buckle Swim Bikini Brief
    Quickshop The Fizx Buckle Swim Bikini Brief is expertly crafted with reinforced stitching...
  • Fizx Runner's Short Fizx Runner's Short
    Quickshop Introducing our Fizx Runner's Short, the ultimate choice for both style and...
    Fizx Runner's Short
    Regular price $23.00

Collection: Swimwear & Activewear

Dive into summer-ready style with The Underwear Store’s Swimwear & Activewear Collection, your go-to lineup for high-performance swim trunks, stylish swim briefs, sleek swim bikinis, and versatile activewear like men’s singlets and gym essentials. Whether you’re hitting the beach, poolside, or crushing workouts, our collection delivers everything you need—from quick-dry men’s swim trunks that offer comfort and coverage, to bold swim bikinis and trims for a daring poolside statement, as well as supportive swim briefs designed for freedom of movement. Our activewear staples, including breathable men’s singlets, keep you cool and confident from gym sessions to outdoor runs. Crafted with premium materials that ensure durability, stretch, and moisture-wicking performance, this collection is all about function fused with style. Shop today and discover why guys across the U.S. trust The Underwear Store to upgrade their swimwear and active gear with on-trend, high-quality pieces that boost both comfort and confidence.

Swimwear & Activewear

Men's Briefs

58 products

Women's Sets

14 products

Men's Trunk

79 products

Men's Bikini

16 products

Robes

1 product

Men's Thongs

51 products

Boy Shorts

5 products

Teddies

5 products

Jockstrap

68 products