jamBAM booties are perfect for around the house, running errands, day care, indoor playgrounds, light outdoor use, special occasions, holidays & gifts. Available in baby/toddler shoe sizes 0-7. ABOUT -linen material is a blend of linen (55%) & cotton (45%) -handmade -built in elastic around the heel to help keep jamBAM booties snug -machine washable-lay flat to dry SOLE OPTIONS -linen blend sole (best for non-mobile babies since it does not offer any grip) -tan grippy (flexible, rubber, waterproof sole great for indoor or outdoor use) -crawlers/extra durability-add on a toe guard for $1.00 extra I highly recommend a toe guard if jamBAM booties will be worn outside or if your baby is crawling - SIZING To ensure the best fit: -measure your child’s foot in inches (heel to tip of big toe) -add 1/2 inch to your measurement for wiggle room -use chart to determine jamBAM size -if your child has extra pudgy feet, let me know & I can make them a little wider. footjamBAMjamBAMage LENGTH-LENGTH-SIZE-(MONTHS) 3.54-0Newborn 3.75"4.25"-1-1-3 4"4.50"-2-3-6 4.25"4.75"-3-6-9 4.5"5"-4-9-12 4.75"5.25"-5-12-18 5"5.50"-6-12-18 5.5"6"-7-18-24 Follow me on Facebook @www.facebook.com/jambambooties or Instagram @jambam_booties for updates & special promotions & don’t forget to tag your littles on Instagram using #jambambooties - Meets CPSC safety requirements." Raspberry Linen Blend Baby Booties, Slippers, Crib Shoes, Soft Sole, Moccasins, Shoes