Copperfield Wind Shirt

This garment targets gram-conscious backpackers and trail runners who find mainstream windshells either too heavy or hopelessly clammy. Enlightened Equipment builds it around gossamer fabrics—typically 7-denier or 10-denier ultralight ripstop nylon treated with a light DWR finish. The construction strips away nearly every luxury to preserve sheer function: simple elastic cuffs, a minimalist hem, and cleanly finished seams that keep packed volume down to roughly the size of a lime.

On trail, the Copperfield excels at regulating body temperature across breezy ridgelines and cool morning departures. Unlike dense windbreakers that trap moisture like greenhouse plastic, the fabric breathes noticeably well—particularly in the higher-CFM 7D configuration—preventing sweat saturation during hard uphill pushes. That breathability comes at the expense of absolute weatherproofing. It cuts wind chill effectively, but sustained precipitation pushes through quickly, and the paper-thin nylon demands cautious handling around sharp granite and overgrown brush.

Weighing well under three ounces depending on sizing and fabric choice, it comfortably undercuts mainstream staples like the Patagonia Houdini in packed weight and vapor transfer. You forfeit hand pockets, dense weather protection, and rough-and-tumble durability, but for thru-hikers and mountain athletes operating out of low-volume packs, the thermal regulation to weight ratio is difficult to beat.