Is there any out there who has an Sugar Cane Lot 303 Jeans Fiber Denim Indigo 16,5 oz.

Hey there, i wear my 634-S since 3 month - i find the pockets in front are a little tight a the beginning - example to put in an iphone or knife inside - can i stretch it  - or are any other suggestions. And the second question - how can i stretch the waist a little bit - it ca be little more comfortable and soften there - Thanks Markus