Smartwool's Women's Phd Outdoor Ultra Light Pattern Mini Socks pack huge comfort in a mini sock. The ultra-light weight means these socks are your go-to's for mid-summer hikes. Smartwool's 4 Degree elite fit system uses bi-elastic fit bands that stretch comfortably around your foot and maintain the socks' original shape wear after wear. For those high-mileage days, Reliawool technology will keep your feet comfortable in high-impact areas. Bottom line: your legs will probably tire out before your dogs start barking with these babies on.