Step 2. Put on a warm fleece sleeper that is one size too big (my son is in a 3m so I put a 6m sleeper) over his warm clothes
Step 3. Put on a warm sleep sac - any kind will do I used one with short sleeves because Callen peed on his long sleeve one (I was having a bad day with Callen peeing on everything)
Step 4. Put on a hat and mitts and enjoy the great outdoors
Step 5. Put baby in snow for a cute picture and then go inside (do not put baby in snow for long as this winter suit is not waterproof). Callen was not too happy about the snow.
If you want to use a wrap/carrier/stroller instead of using the sleep sac use another warm sleeper. With a wrap or carrier steal a wind proof coat from your husband or use a maternity one for wind resistant protection. In a stroller use the rain cover to protect from the wind.