The 1970 Arctic Snow-Suit sizing was the same for the guys and the gals. The sizes were by number and weight. XX was the largest size (240-260 lbs) then the numbers went from 1 down to 7. 1 being 200-240 lbs, and 7 being 60-80 lbs. The children's coverall suits were sized by age. 8B 8-10 years, 6B 6-7 years, 4B 3-5 years. ~~~~ I have two 1970 vintage Arctic Cat coverall snow suits listed at eBay right now, a men's size 5 and this woman's size 6. Also listed is a 1972 Arctic Cat EXT snowmobile suit in a men's medium. ~~~~ We specialize in vintage, used and often NOS, snowmobile clothing and accessories. Watch for listings for men's clothing and women's clothing, childrens clothing, youth clothing, snowmobile suits, coats, jackets, caps, helmets, boots, and accessories for Vintage Scorpion snowmobile, Rupp snowmobile, Yamaha snowmobile, Ski-Doo snowmobile, Kawasaki snowmobile, Polaris snowmobile, Arctic Cat snowmobile, John Deere snowmobile, and others. I will be adding more items all the time so please bookmark me and check back often! I also have many items in my DollyKamCo-Vintage Snowmobile Collectibles Auctiva Commerce store @ www.dollykamco.com