The Silkberry Baby sleep sack is a safe, soft and comfortable way to replace loose blankets in the crib. Features: An J-style zipper that wraps right around allow for easy dressing and access. Chin protector on the end of the zipper. Breathable + Soft Bamboo, which is antistatic, hypoallergenic and easy care. Fabric
Tog: is the unit of measure of thermal insulation used in the textile trade. The British TOG value is the international standard measurement of a blanket's thermal effectiveness ( how well it keeps you warm ).
0.5 TOG warmer seasons or climates. 1 TOG is for moderate weather. 2.5 TOG is for chilly seasons and climates.
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