3STRIPES BOXER. Classic 3-Stripes Swim Boxers. Heritage-inspired swim boxers made in part with recycled materials. The water is for everyone. Cool, refreshing, relaxing — what's not to love? Enjoy a lap swim, a river float or a vigorous paddle in these adidas swim boxers. Soft, chlorine-resistant fabric lets you move freely through the water. Applied 3-Stripes stay true to our performance roots.• Tight fit• Stretch waist with inner drawcord• 78% recycled nylon, 22% elastane tricot• Jersey lining• Infinitex Fitness Eco chlorine-resistant fabric• Soft material