Functionally, the Lilium mountain bike shorts has 3 zippered pockets, strategic laser perforated zones and a zipper fly and snap closure. For the mid-ride pics, the Lilium has a phone specific pocket that will hold the phone securely. The performance oriented cut is constructed of a 4-way stretch woven fabric and feature a comfort waist adjustment system. PART# -257528021 (XS) -257528022 (S) -257528023 (M) -257528024 (L) -257528025 (XL)