I ordered a medium and large being a 35" waist large was right size. I use underpants underneath also as I felt there wasn't enough support inside. 2 leg pockets and back space for gels etc.

Size L (36” waist, 6’2” & 95kg) Loved the look of these tights but hate buying online due to sizing. I opted for purchasing both L and XL - The advice was to size up to XL. Both fitted OK however the TTS Large was better for me as preferred the snug fit and allowed a more secure hold of my phone in the leg pocket. I have an iPhone Max which is very big and heavy. Design and feel is very good with the subtle additions. There are 2x leg pockets. for phone or gels and a 2 section thin waist band pocket sleeve on back which is only suitable for gels etc due to its size. Very odd elastic waistband to tighten shorts but it does function. I initially thought it was just a design detail.