Men's Underwear
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The Mk1 Product Line
When it comes to high-performance fabrics, Our product line of quick-dry and modal products stands out. Check out the differeces.

Mk1 Air: Breathable Boxer Briefs for Sport and Summer
Sale price$21.99

Mk1 Pro: Soft and Comfortable Trunks for Spring
Sale price$23.99
Regular price$28.00
Material
UltraBreathe™
IceSilk™
Lenzing Modal™
Type
Boxer Briefs
Trunks
Trunks
Waistband
Seamless + UltraVision™
Seamless
Seamless
Occasion
Sports, Daily
Summer, Daily
Daily, Work
Dry-Time
30 mins
2 hrs
5 hrs
Softness
Soft-Tissue
Silk
Fine-Fabric