Birkenstock Unisex Birko Sport Arch Support - Sport Blue Insole 43 (US Womens 12-12.5, US Mens 10-10.5) Medium Panty Liners They work by hydrating and

They work by hydrating and softening the skin

Blue Light Therapy

Advanced Zoning System - AZS improves product performance through specialized functional zones

DThese herbs are never fumigated or irradiated

Birkenstock Unisex Birko Sport Arch Support - Sport Blue Insole 43 (US Womens 12-12.5, US Mens 10-10.5) Medium Panty Liners They work by hydrating andThe BirkoSport two part system combines a BirkoCork? arch support, made from cork and EVA, and a shock absorbing BirkoCell EVA foam top layer. Proper arch support helps distribute impact, absorbing shock and stabilizing the foot with every step. You can wear the layers together or separately to suit your comfort needs.