1. Sunglasses » No sweat streaks, no sunscreen smudges, no frames blocking peripheral vision. Runners won't find a better pair of sunglasses than OAKLEY's Gear of the Year–winning Radars. $155–$225; oakley.com

2. Vest » Core warmth doesn't get any lighter than MONTBELL's 2.2-ounce U.L. WIND VEST. The feathery, DWR-treated nylon vest blocks wind and light rain, yet vanishes in a shirt pocket. The Napoleon pocket is the perfect place to stash a key or emergency cash. $64; montbell.com

3. Hydration » On long runs, the most comfortable way to stay hydrated is with ASICS's GRIP WATER CARRIER, an ergonomically shaped handheld bottle that holds 18 ounces of fluid. It has a moisture-wicking strap, reflective trim, and key pocket. $15; asics.com

4. Shorts » ARC'TERYX's new running apparel has the signature clean lines and attention to detail that distinguish the company's alpine gear. In the VELOX shorts, that means a bunch-free waist, seamless inner thigh, and lightweight, wicking polyester fabric. $59; arcteryx.com

5. Socks » NEW BALANCE's MARATHON TRAINER NO SHOW SOCKS hug the contours of your foot like latex. The anatomical fit, arch supports, and silky, wicking nylon/spandex fabric let you set a blistering pace without the blisters. $10; newbalance.com

6. Shirt » Silver-infused threads in the fabric of BROOK's HVAC T are designed to keep you comfortable by distributing body heat evenly across the shirt. We were dubious, but it seemed to work, keeping our thermostats regulated in warm and cool temps alike. $54; brooksrunning.com