youd get that lot into a small one…
A large will carry mini tool kit, my (not insignificant) lunch, pump, tubes, suntan lotion, work clothes, change of riding clothes, w/proof jacket, shoes, phone, DVDs Ive sold on ebay, towel, shower gel, 1 litre bottle of water and Ive still got room if I needed it…
And its been doing stuff liek this nearly every day for the last 15 years…!