Men's 2025 Brooks Atmosphere Singlet 3.0 In-Training SIZE:2XL which is 32% lighter than

which is 32% lighter than its predecessor and more pliable for a soft yet responsive ride

while the Fresh Foam X midsole

Triple jacquard mesh upper provides increased breathability in key areas

4 Degree™ Elite Fit System for a dialed-in

and insulation even when wet

Men's 2025 Brooks Atmosphere Singlet 3.0 In-Training SIZE:2XL which is 32% lighter thanSize Guide The all new Detroit Marathon In Training gear for 2025 from Brooks is now in! Featuring a fresh logo with the iconic Spirit of Detroit monument. A perfect piece to get ready for your upcoming Detroit race. Sweat wicking, quick drying stretch fabric, this light layer provides near weightless coverage for miles of comfort. Odor resistant finish keeps it fresh between washes.