SRAM Rear Derailleur Force WiFli Medium Cage Max 32T RIMS - MTB Its waterproof shell and 4-way

Its waterproof shell and 4-way stretch will keep you warm and comfortable in even the nastiest conditions

1x 4mm "top" spacer (Roval Rapide adapter)

Highly water-resistant construction

22% Elastane - UPPER: 95% Polyester

Besides that

SRAM Rear Derailleur Force WiFli Medium Cage Max 32T RIMS - MTB Its waterproof shell and 4-waySRAM Rear Derailleur Force WiFli Medium Cage Max 32TThe SRAM Force Rear Derailleur takes advantage of Exact Actuation, an actuation ratio that delivers precise 3mm shifts in every gear along with the widest range of adjustment available, delivering the best 10 speed performance in the sport. 10 speed Compatible WiFLi option available Carbon fiber outer cage and magnesium inner link provide strength and light weight.