Buy one size bigger than you usually wear
I had to send these back which cost $11.80 and it would cost around $6.50 more to ship back a bigger pair to me. I didn't think it was worth it. Sportsunlimited refunded me the $25 but I lost money in the shipping process. Be aware that these run small and if they don't fit you will lose money on shipping to send it back and it costs more to ship another pair back to you.
ProsSportsunlimited refunded my $25
ConsI lost about as much as the product cost in shipping fees
Pants don't fit the size chart provided, pants run smaller than the size they claim to be