The Fibre Company Patterns - Copenhagen Hood is a similar pattern: 16 (4 sts. / inch) finished gauge, for unisex, and bulky (12-15 sts/4 in) yarn gauge. You may also like Knitting Pure and Simple Baby & Children Patterns - 0113 - Children's Mukluk Slippers, which is another similar pattern: socks and footwear garment, bulky (12-15 sts/4 in) yarn gauge, and bulky weight suggested yarn.
You may enjoy taking a look at the Schachenmayr Regia Pairfect Beginner's Lightweight Socks, Knitting Pure and Simple #216 Beginner's Lightweight Socks, Knitting Pure and Simple 242 Beginners Mid-Weight Sock , and Misti Alpaca Hand Paint Sock Yarn Beginners Light Weight Socks kits all using Knitting Pure and Simple Sock Patterns.
Hopefully our suggested yarn options for 998 - Men's Heavy Weight Boot Sock can help you come up with your next exciting new project idea!