Stretch with the best in Wendy Stretch Sox. Classic HEYDUDE™ construction, stretch mesh material upper and elastic laces mean slip-on ease, comfort and lightness from top to bottom. Rock it all in foot-hugging style and all new seasonal colors. Wendy Stretch Sox Details: Stretch mesh Comfort cushioned ankle collar Elastic laces Easy-on system Travel ready Removable foam insole Lightweight flexible outsole Available sizes: 3, 3.5, 4, 5, 6.5. HEYDUDE Slip-ons (Shoes) Wendy Stretch Sox Available in women's sizes. by HEYDUDE. Here is one of the best designs from the latest collection of slip on shoes for women from HEYDUDE. Their style secret lies in the beige fabric upper, a fashion duo that we love this season. There's more to life than trainers: there's slip-ons too!