The Bioaktive Trekking Gel range is for people who enjoy their free time cycling. The perfect saddles for the lovers of trekking or simply for riding on city roads in freedom. The Gel layer, combined with the biodynamic structure guarantees comfort lasting good looks. If you prefer the longer routes, the more compact padding of the \"small\" saddle will provide the best comfort. The large is better suited for shorted more leisurely rides.Features:Rail: Steel/CarbonShell: PolypropylenePadding: Biofoam +GelCover: Softfeel Black SuedeSize: Small 164mmSize: Large 196mmWeight: 400g / 450gGel:These Bioaktive saddles are provided with specific gel inserts placed under the protective cover. Their function is to reduce the impact of shocks on sensitive points.Biofoam:A light weight memory foam with great resilience. Biofoam’s structure is accommodating with the movements of the pelvis during pedalling. It reduces saddle weight and guarantees comfort and durability. The “closed cell” surface also ensures the saddle will repel water.Bioaktive is a successful line of saddles anatomically designed to suit every style of riding. It benefits of the elaborate experience and heritage of Selle San Marco, an Italian company. That produces handmade bicycle saddles since 1935. Premium materials, high technology. Solutions and dedicated features make each Bioaktive saddles unique. The need to simplify. The choice for the perfect saddle resulted in a range designed according to riding style:Sportive, trekking or city.Which kind of rider are you?If you prefer short trips or you ride every now and then choose a LARGE saddle, it will ensure the comfort you need. Otherwise, if you ride for longer routes or you use your bike frequently you should find the right saddle on the section “SMALL”.