These are the lightweight socks made from fine 1.2-mm netting that shields the skin from mosquitoes without the use of harmful and malodorous chemicals. Worn over regular clothing and shoes, the socks protect against insect-borne illnesses such as West Nile virus and Zika, as well as the discomfort of itchy welts. Only available from Hammacher Schlemmer, the socks stay in place with elastic collars that conform to shoes. While standard insect repellents must be reapplied after several hours, the socks provide continuous, nontoxic, and environmentally friendly coverage without DEET or fragrances. The machine-washable polyester stretches to allow freedom of movement while engaging in outdoor pursuits, and is breathable so it won’t trap heat, helping you stay cool even in tropical climates. For best protection, a loose fit is recommended. Olive. Unisex sizes S/M and L/XL.