Winter Sleeping Bag Kids Sleeping Bag 2.5/3.5 Tog Organic Cotton Sleeping Bag S size: manufacturer size S - 68 cm long size 60 - 75 cm, suitable for babies 3 - 7 months. M size: manufacturer size M - 83 cm long size 75 - 90 cm, suitable for babies 7 - 18 months. L size: manufacturer size L - 95 cm long size 90 - 105 cm, suitable for baby 24 - 48 months. Baby Sleeping Bag with Legs Warm Lined Winter Long Sleeve Winter Sleeping Bag L size: 100, suitable for babies body length between 37.40 in - 41.33 in/95 cm - 105 cm. Note: Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight colour variation for different display setting