Man’s Best Friend was designed as a bit of a novelty, a little nod to the stereotypical image of the teenage boy who doesn’t always take the care he should with his personal hygiene and may try to stretch the wear of his socks out just one more day by turning them inside out. Now he doesn’t have to choose, with both designs in Man’s Best Friend (1, left or 2, right) there is no wrong side, with a little bit of knittery magic both sides are identical and as they’re both knitted in anti-bacterial Tofutsies yarn there’s no reason you can’t make your socks last that extra day*.
The basketweave pattern on MBFI carries on under foot once you’re past the heel making it nice and squishy underfoot (or so I’ve been told), while MBFII has a 1×1 rib on the sole which helps it cling to the foot and support the cable on the top of the foot. The yarn I used was some from stash and I’m not sure of current stockists/import into the UK right now so my advice on yarn substitution would be that any bog standard sock yarn would work well, however if making the larger size of MBFII which will require 2 balls of Tofutsies I’d avoid anything that comes in a 50g ball unless you’re confident you can make any join invisible (using a split splice method or similar if the yarn’s suitable for felting) as there’s no wrong side to hide the ends in. The original sample for MBFII was knitted in Wendy Happy which tends to be a very floppy yarn due to the lack of animal fibres. It worked perfectly with the structure of the cable pattern however.
*Please don’t take this seriously boys (and girls), clean socks and hygienic feet are very nice really and the people in close proximity to you will thank you for it.
Lyssie Page Knitwear Designs 
These look great!