Very stretchy and sized to fit. Use up scrap yarns with 2 strands held together as we did. You can make these so very colorful! Easy to knit pattern! It looks more like a baby bootie, but will find like a glove! Sizes from toddlers size 2 yrs, to mens sizes. These make wonderful gifts and let you use up those bright colored yarns too! Use worsted weight yarns, knitting needles, US # 11. Start knitting these now, and tuck away for quick gifts!