Swado swaddles is unlike other swaddles because it has no zippers nor Velcro, yet adjustable. Parents can position their baby’s arms in the most natural position that baby prefers and according to baby's developmental stage. Swado’s unique fabric fastener is: • Silent – keeping baby unrattled during diaper changes and night feeding • Secure – ensuring no lose blankets • Soft – No Velcro or zipper parts that could potentially scratch baby’s delicate skin A swaddle great for all seasons. Small: 3M. Swado Length (shoulder to toe): 25 / 65cm. Weight: 5-14lbs. / 2.5-6kg. Medium: 3M – 6M. Swado Length (shoulder to toe): 29.5” / 75cm. Weight: 8-18lbs. / 3.5-8kg.