The 998 has a wider toe box area.
Go down half a size. (ie. I am a true size 9.5, so I buy my 998s in a size 9)
As of right now (Q1 2022), 998 retroes do NOT come in wider or narrower sizes.
Comfort Factor Ratings:
Cushioning (Softness): 5/10
Stability (Firmness): 5/10
Cushioning to Stability Ratio: 5:5
Midsole Shape (Foot support): 6/10
The 998 is a pretty comfortable shoe! It has a good amount of cushioning and comfort without being too overly soft or squishy on feet.
The 998 utilizes New Balance's proprietary Abzorb cushioning technology. Abzorb provides a good combo of cushioning and compression resistance.