HI Jess, Yes, you can carry your 4 month old is the face out position. We do however recommend that you try to wean him into enjoying the face-in postion, so that you can enjoy carrying him for longer periods of time and/or while he is sleeping. If you pop him in a few times when you know he is tired and ready for a sleep, leave his arms outside the wraps if he fusses and bounce around or go for a walk until he sleeps. Leave him in for as long as you are able to the first few times and he should quickly develop a positive association with this position. Hope that helps.

We would still recommend you choose a size that will best fit you. The Huggable size will fit an XXL male, but it is also OK for men to tie the Hugabub at their backs if there is not enough fabric to tie at the front.