Bra Top: High-Neck Crop
Sports bra–type support, for equal parts form and function.
To buy: $20, cottononbody.com.
Headphones: Kickback Headphones
Onboard control buttons let you focus on your reps without missing a beat.
To buy: $50, alteclansing.com.
Backpack: Luxe Wool Run Backpack
Big enough for all the essentials, with a compartment for a laptop.
To buy: $145, sweatybetty.com.
Foam Roller: Gaiam Tissue Roller
The soft spikes knead more deeply than a smooth surface does.
To buy: $35, kohls.com.
Joggers: Sweeper Pants
Stretchy, waterproof, and, yes, breathable.
To buy: $160, koral.com.
Stopwatch: Unit 40 Watch
Time your intervals down to the second. To buy: $100, nixon.com.