Yes. All team members must order the same garment type (for example, all singlets or all tees).
You cannot mix and match within the same team order. For example, one person cannot order a singlet while another orders a tee.
Exception: If your team is ordering in batches of 10, you may choose a different garment type for each batch. (Example: 10 singlets + 10 tees is fine. But 4 singlets + 3 tees is not allowed.)