Once I would suggest Mark's for oversize clothing, but since CrappieTire bought them, for the past 3 years they don't even stock XL glove/mitt sizes, nor 12-14 sock sizes. And as far as long-sizing for shirts and jeans, not! for shirts and just maybe for pants. And boots at $185 that I can get for $85??? I just can't do that anymore. I'm a real maple leaf... but... that's just too big a price to pay.
Sadly, it's become Cabela's and BassPro online for me for a lot of stuff. Variety is excellent, pricing is fair to competetive, sales can be unreal, and for the PLus++ sizes and tall sizes, you actually get selection and choice in quality & features.
but, if you want good waders and are slim or tall & slim, with feet that are manly, you have to custom order through your local specialty shop from someone like Simms.
A sad Cheers!