Sleep Sack 2.5
- exterior: 97% bamboo rayon, 3% spandex
- filling: 100% polyester
- highly breathable
- J-shaped double zipper
2.5 TOG: 16 - 20 °C / 61 - 68 °F
TOG is a rating system that measures warmth and calculates how quickly a fabric uses heat. It is the standard when choosing the appropriate sleeping bag for your baby, depending on the ambient temperature in your nursery. We recommend a heavier TOG during cooler months and a lighter one.