Beat the Heat Left: Warm the trunk and cool the legs with a Smartwool Vortex longsleeve crew ($85; www.smartwool.com), which is washable and never itches, and the cotton canvas Arc'Teryx Gamut Longs ($75; www.arcteryx.com), shorts that feature a comfy 12-inch (30-centimeter) inseam for a huge range of motion. The North Face Neutron 32 daypack ($99; www.thenorthface.com) includes an elastic strap to carry a bike helmet and organizes an enormous amount in a small space.
Right: Keep legs warm and top cool with Westcomb's Synchro pants ($199) and featherlight, fast-drying Arc'Teryx Ether Crew Short Sleeve ($45), possibly the lightest shirt you'll ever wear. Prepare for the unexpected with the REI Taku Jacket ($199; www.rei.com), a waterproof, breathable shell that packs light and goes for half the price of most comparable jackets.
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Performance Clothing and Gear! Index of /media/adventure/0510/gear