The bag is just as carefree when it comes to handling. Its material and welded seams make it absolutely waterproof. It is also robust, dirt-repellent and abrasion-resistant. The large, roll-up opening allows quick access to the contents and additional equipment can be attached to the outside with elastic cords. The SEAT PACK BOA WP saddle bag is available in four different sizes: with 6 or 8 litres of packing volume for day trips and micro-adventures and with 12 or 16 litres for multi-day tours and expeditions. The perfect combination with our bike packing products ensures infinitely variable, quick and easy attachment to your bike. Compression Straps The compression straps offer you the possibility to reduce the volume of your bag or backpack. This prevents the contents from flying around and also reduces the size of your bag.