INCOSE has shared the SEP logos with Lands End, a US-based provider of clothing and home goods. If you would like an ESEP polo, a CSEP fleece jacket, or an ASEP backpack, you are likely to find something you like at the Lands End Store. 

If you want something made elsewhere, please email certification@incose.net so that we can know what you're making then we'll send you the high-resolution logos.