Recommendations for a durable iPhone 6 plus case able to withstand 1 year old

Ari • Proud momma of 2 rambunctious boys (7&3) & 1 on the way 👶🏼
Okay, we have a 1 year old son who is constantly picking up my phone and dropping it! I obviously do not let him play on it intentionally, but more times then not he grabs ahold of it and throws it all over the place. I've searched Google, Amazon, and countless other places in search of a good durable case able to withstand the terror of our youngest boy. I am at a complete loss and am in need of recommendations! I've seen the OtterBox and LifeProof cases, but some of them are just too bulky; even the slimmer line models. I currently have a case that folds over my phone and holds my ID and bank card, but even that case is starting to disintegrate. I love the idea of being able to put my phone in my diaper bag without having to add the weight of a bulky wallet.