Yes.  The majority of appropriate dress codes specify that students wear no-logo navy and/or white tops and navy bottoms.  If you would like to ensure compliance with any dress code policy, please read the communications sent directly to you by the school that your child is attending.  Some schools with dress codes have additional requirements, such as white-only tops or tops with collars.
If your school has a uniform policy (rather than a no-logo dress code policy) that includes crested and school logo identifiers, you may still shop at DGN Kilters stores.  If doing so, we suggest that you consult your school store at www.dgn-kilters.com for your school uniform guide.